CBSE > Class 11 > Physics | CBSE Board | Homework Help

A+B = 7i+5j+0k |A|=4root3 |B|= root26 |R| =|A+B| = root74 Now, use the formula for resultant |R|= root(|A|² +|B|² + 2|A||B|cosø) ,where ø is angle btw A and B By putting values you will get ans??

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Radius of gyration?

Posted by Mahak Madan 3 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Ashok Kumar 3 years, 1 month ago

Radius of gyration is a type of distance, Its SI unit is metre(m), its dimension is [L].

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Assertion: Displacement of a body is vector sum of the area under velocity-time graph. Reason: Displacement is a vector quantity.

Posted by Pratyaksh Varshney 3 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Ashok Kumar 3 years, 1 month ago

Both are true, "b" is the correct explanation of "a"..

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What is work energy theorm

Posted by Anshu Yadav 3 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 1 month ago

The work done by an external unbalanced force on a given body is equivalent to the change in kinetic energy which has occured in the object. This is known as WORK ENERGY THEOREM. ie, W = FScosθ = K2 - K1.

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What are the scientific methods

Posted by Deepak R 3 years, 1 month ago

CBSE > Class 11 > Physics

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Kinatic energy of rolling body

Posted by Kowshik Pl 3 years, 1 month ago

CBSE > Class 11 > Physics

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Show that the motion of a simple pendulum is simple harmonic and hence derive an equation for its time period what is second pendulum

Posted by Nandhu Reddy 3 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Derive trajectory equation?

Posted by Akshat Mishra 3 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 1 month ago

H (ψ) = Ε (ψ). Where H is Hamiltonian operator and (ψ) is wave function. )

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Chapter 4

Posted by Tanu Jangid 3 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Ankit ............ 3 years, 1 month ago

See on this app

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What is electronagativity

Posted by Satish Jaisawal 3 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Ankit ............ 3 years, 1 month ago

Symbolised by X tendency of an atom of given element to attract shared electron when forming chemical bond.

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Ankit ............ 3 years, 1 month ago

Symbolised by X

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the initial velocity of a bike is 60 km h.the brakes were applied so as to produce uniform acceleration in opposite directions -3ms-².Calculate the time taken to become at rest in ms-²

Posted by Ruatkima B.Lalruatkima 3 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 1 month ago

u = 60 km/h × 5/18 = 16.6 m/s.. v = 0 m/s. a = -3 m/s^2. t = ? Therefore, t = v-u/a = -16.6/-3 = 5.5 s//

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The displacement in metres of a body varies with time t in second as y = t2 – t – 2. The displacement is zero for a positive of t equal to

Posted by Rajkumari Ragini 3 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Baibhav Sanket Padhy 3 years, 1 month ago

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Is this app has ncert examplar too

Posted by Sunita Singh 3 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Ankit ............ 3 years, 1 month ago

Yes

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Aashay Tembhurne 3 years, 1 month ago

Yes

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using Calculus establish the reaction v2-u2-2as

Posted by Saud Shaikh 3 years, 2 months ago

CBSE > Class 11 > Physics

3 answers

Shivani Kumari 3 years, 1 month ago

THIRD LAW OF MOTION EXPLANATION BY CALCULUS METHOD a = dv/dt × ds/ ds a = ds/ dt × dv/ds a = v × dv/ds v dv = a ds ✓ v dv = a ✓ ds [V2/2]2 = a[ s ] V2/2- u2/2 = a ( s-0 ) V2-u2/2 = as {v2- U2 = 2as} proved

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Shrey Patel 3 years, 2 months ago

Kapada

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Shrey Patel 3 years, 2 months ago

E shark hairs tari ota di pa au oya ap park layoffs ooze oasis

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Why pulling a roller is injerous then pushing?

Posted by Prajwal Kumar 3 years, 2 months ago

CBSE > Class 11 > Physics

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The length and the radius of a cylinder measured with the slide calipers are found to be 4.54cm and 1.75cm respectively .calculate the volume of the cylinder

Posted by Jatin Gujjar 3 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 2 months ago

V = π r^2 l = 3.14 × 1.75 × 1.75 × 4.54 = 43.657775 cm^3. //

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Conservation ofo

Posted by Nived Narayan 3 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Write the dimensional formula for. Work, velocity, kinetic energy, pressure, acceleration.

Posted by Arati Sunel 3 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 2 months ago

Work = [M L^2 T^-2]. Velocity = [LT^-1]. Kinetic energy = [ML^2T^-2]. Pressure = [ML^-1T^-2]. Acceleration = [LT^-2].

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What is centripetal acceleration? Why is it produced in the curve linear motion?

Posted by Shivani Kumari 3 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Newtons low of cooling

Posted by Spandana J 3 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Bhagyshree Chakrawarthi 3 years, 2 months ago

Dyos69st,sodyd8d tinged z8yc roughly ey,kbxk

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Mcqs questions

Posted by Mohd Sareen 3 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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What is nth scaler quantity

Posted by Manish Kushwaha 3 years, 2 months ago

CBSE > Class 11 > Physics

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a body is projected in a vertical direction. the altitude y is given by y =10t^2 -9t+5 . Calculate the initial velocity of the body.

Posted by Vaibhav Pandey 3 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Explain circular motion....centripital force defination

Posted by Bhumika Makwana 3 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Nurut Kkw 3 years, 2 months ago

In a circular motion ,any body move along the radius

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Nurut Kkw 3 years, 2 months ago

Centripetal force is the force required to move a body uniformly in a circle. This force acts along the radius to the centre. => according to Newton first law of body cannot change it direction by itself. Some external force is required for this purpose. And this external forces is called centripetal force.

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Need some questions on work energy power case study based

Posted by Atharva Mehta 3 years, 2 months ago

CBSE > Class 11 > Physics