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According to the Newton’s 2nd Law of motion, the rate of change of linear momentum of a body is directly proportional to the applied external force and in the direction of force. It means that the linear momentum will change faster when a bigger force is applied. Consider a body of mass ‘m’ moving with velocity v. The linear momentum of a body is given by: P= mv Now According to Newton’s 2nd Law of Motion: Force is directly proportional to rate of change of momnetum, that is F α dp/dt F = k dp/dt F = k d(mv)/dt F = k md(v)/dt F = k ma Experimentally k =1 F = k ma Which is the required equation of force.

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Write the name of frictional force which work during rolling motion of a body discuss with the help of diagram. What is the cause of this frictional force?

Posted by Devendra Sarwan 7 years, 1 month ago

CBSE > Class 11 > Physics

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Show that for small oscillations the motion of a simple pendulum is simple harmonic. Derive an expression for its time period.

Posted by Divya Tripathy 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Kunal Gautam 7 years, 1 month ago

T=√l÷g

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Derive lens maker formula

Posted by Gaming Hub. 7 years, 1 month ago

CBSE > Class 11 > Physics

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Calculate the gravitational force between electron,and proton seperate by distance of 1A

Posted by Sakshi Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

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What is the relation between Newton's 1st law and 2nd law of motion?

Posted by Manoj Cruze 7 years, 1 month ago

CBSE > Class 11 > Physics

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Surya Narayan 7 years, 1 month ago

F=ma A=v-u/t When f=0: m!=0 so a=0 t!=0 so v-u=0 Hence v=u Thus body remains in same state of motion.. ie law of inertia obeyed

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what is the relation between angular velocity and angular momentum

Posted by Asjad Khan 7 years, 1 month ago

CBSE > Class 11 > Physics

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Shatayu Ganvir 7 years, 1 month ago

L=IW

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Prove that the motion of a spring is shm

Posted by Arundhathi Bijith 7 years, 1 month ago

CBSE > Class 11 > Physics

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Dalton's law of partial pressure

Posted by Guidkkk Gjkkl 7 years, 1 month ago

CBSE > Class 11 > Physics

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Guidkkk Gjkkl 7 years, 1 month ago

P=P1+P2+P3+........

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Bernoulli's theorom

Posted by Sahil Verma 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Ayush Kumar Singh 7 years, 1 month ago

Pure tarike se galat hai

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Chanda Singh 7 years, 1 month ago

The sum of three energy pressure, kinetic,and potential is known as Bernoulli's theorem

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Newton laws of motion

Posted by Anjali Verma 7 years, 1 month ago

CBSE > Class 11 > Physics

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Shubham Kr. 7 years, 1 month ago

There are three laws of motion 1st law of motion 2nd law of motion 3rd law of motion

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Siddharth Kumar 7 years, 1 month ago

There are 3 laws of Newton

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Equiliberium

Posted by Anjali Verma 5 years, 11 months ago

CBSE > Class 11 > Physics

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Gursharn Kaur 7 years, 1 month ago

Equilibrium is a state where the parameters which describe the state of system do not change with time.

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What are the 4 fundamental force in the asending order of their strength

Posted by Anjali Verma 7 years, 1 month ago

CBSE > Class 11 > Physics

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Nikhil Sharma 5 years, 11 months ago

Gravitational force Electro magnetic force Strong nuclear force Weak nuclear force .....???

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Anjali Verma 5 years, 11 months ago

Where is answer

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Kepelar all low

Posted by Aviral Saxena 7 years, 1 month ago

CBSE > Class 11 > Physics

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Newton second low

Posted by Aviral Saxena 7 years, 1 month ago

CBSE > Class 11 > Physics

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Hritik Gupta 7 years, 1 month ago

The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. F=ma

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Working of hydraulic brakes

Posted by Garhwalli???? Nona 7 years, 1 month ago

CBSE > Class 11 > Physics

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Define SHM. Find the displacement,velocity and acceleration

Posted by Saurabh Sharma 7 years, 1 month ago

CBSE > Class 11 > Physics

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What is the Newton's fist law of motion

Posted by Guidkkk Gjkkl 7 years, 1 month ago

CBSE > Class 11 > Physics

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Avantika Tayal 7 years, 1 month ago

An object will remain in its state of motion or rest untill an unbalanced external force in not applied to it

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Action and reaction forces do not balance each other why?

Posted by Our Live Tv 7 years, 1 month ago

CBSE > Class 11 > Physics

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Avantika Tayal 7 years, 1 month ago

Because they act on different objecta

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coefficient of conductivity class 11 physics

Posted by Akshat Varshney 7 years, 1 month ago

CBSE > Class 11 > Physics

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Suppose to force P and Q unit having angle between them act on a body find the resultant force and it determined wrt horizontal

Posted by Pushkar Pandey 7 years, 1 month ago

CBSE > Class 11 > Physics

4 answers

Priya Dharshini ? 7 years, 1 month ago

Hi ankit. I also started use cbse app last week.

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Ankit Singh ?????? 7 years, 1 month ago

Yes

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Priya Dharshini ? 5 years, 11 months ago

Only teachers can send photos i think so

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Garhwalli???? Nona 7 years, 1 month ago

How to send photo question in cbse guide

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On what value do the angle of contact depends ?

Posted by Nemi Bagwan 7 years, 1 month ago

CBSE > Class 11 > Physics

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why does air pressure in a car tyre incerease during driving

Posted by Ramkailash Sharma 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Sanidhya Jadaun? 7 years, 1 month ago

Hey gaurav how to upload images for questions pls tell...

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Gaurav Seth 7 years, 1 month ago

During driving, as a result of the friction between the tyre and the road, the temperature of the tyre and the air inside it, increase since volume of the tyre does not change (practically); due to increase in temperature, pressure of the air increases

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Thermodynamic state and thermodynamics process

Posted by Pawan Thakur 7 years, 1 month ago

CBSE > Class 11 > Physics

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All very best for your exam ????

Posted by Aakash Mi 5 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Ankit Singh ?????? 7 years, 1 month ago

Same to u sis

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Anuj Maurya 5 years, 11 months ago

Thank you ???

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Guys tomorrow is my Physics annual exam. How to prepare ?

Posted by Ayush Jaiswal 5 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Priya Dharshini ? 5 years, 11 months ago

Read important questions from this app, then all ncert questions all derivation there are 100 derivation in total. Maximum derivation will be for 25 marks only. Give limited time for derivation not more than a day. Be confident woth wat u have prepared. Think positive u will score good marks.all the best for all exams

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Ramkailash Sharma 5 years, 11 months ago

please read some important concepts ex: ch 1,8,6,9, and ray optics for passing marks

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A projectile is fired at an angle theta upward with the horizontal with velocity u .. show that its trajectory is parabolic

Posted by Akshay Rajput 7 years, 1 month ago

CBSE > Class 11 > Physics