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Why is it easy to pull a land mower than to push it And please answer... I really need it

Posted by Tushar Kharb 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 2 months ago

When push effective friction=u (W+Fsin○) and when pull effective friction=u (W-Fsin○)

ANSWER

a body just slides down a rough plane at an angle of 30 degree with horizontal.calculate the acceleration with which the body will slide down when the angle of inclination of the plane is doubled. take g=10ms^-2

Posted by Srishti Rachna 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 2 months ago

5root3 ms^-2

ANSWER

Are u tube of uniform cross section contain Mercury upon a height h either limb. The mercury in one limb depressed a little and then released .obtain an expression for time period of oscillation assuming that T depends on h,g and row

Posted by Pushpendra Sharma 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

At what angle the two forces A+B and A-B act, so that their resultant is √3A^2+B^2 ?

Posted by Staylin Boro 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

The Speed Of Cyclist is 10 m/s,and the wind speed is 4 m/s. What can be the wind speed Relative to the cyclist?

Posted by Bishwas Sagar 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Does the magnitude of quality change with change in the system of units? Give reason

Posted by Kumar Sambhav 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

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what is radius of gyration??

Posted by Srishti Rachna 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Anshika Choudhary 8 years, 2 months ago

The distance from the axis of rotation at which the whole mass of body were concentrated its moment of inertia about the given axis.....hope this is helpful for u

ANSWER

What is parallex method

Posted by Abhishek Chaturvedi 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Karan Kaushik 8 years, 2 months ago

It is that method which is used to measure the distance of inaccessible object. HOPE IT WILL HELP YOU

ANSWER

Escape speed?

Posted by Yash Kumawat 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Mfsgf

Posted by Vansh Singh 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

V=u+d/t+ a ,solve this equation

Posted by Aayushi Mittal 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

b=(vt)2 ,solve this equation

Posted by Aayushi Mittal 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

b=(vt)2

Posted by Aayushi Mittal 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A stone tied to the end of a string 80cm long moves in a horizontal circle in a constant speed. If the stone makes 14 revolution in 25seconds then find the magnitude and direction of acceleration of the stone?

Posted by Akash Roy 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is a vector?

Posted by Manash Pratim Saikia 8 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Manash Pratim Saikia 8 years, 2 months ago

Thank you very much Bharti.?

Bharti Devnani 8 years, 2 months ago

Having magnitude and direction both.

ANSWER

Formula of torque

Posted by Aayushi Mittal 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 2 months ago

T=f×r

ANSWER

Basic formula of torque

Posted by Aayushi Mittal 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is the energy possessed by a stationary object lying on the ground

Posted by Ayush Meena 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Himanshu Shukla 8 years, 2 months ago

Potential energy

ANSWER

Write derivation of circular acceleration

Posted by Ankit Singh 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is centripetal acceleration ? Find its magnitude and direction I'm case of circular motion of an object

Posted by Pratyush Dubey 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

what are three type of motion

Posted by Hariram Mangloda 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

The time period of an air bubble depends on pressure and density and energy establish the relation between all the above by dimensional formula

Posted by Rounak Sinha 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

If the centre of mass of three particles of masses 10,20 and30,g is at the point (1,-2,3),then where should a fourth particle of mass 40 g be placed, so that the combined centre of mass of the system is at (1,1,1)?

Posted by Nandini Yadav 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

speed of a car on national highway is 30ms-1. express its value in kilometre per hour (KMPH)

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Anshika Choudhary 8 years, 2 months ago

to convert m/s into km/h 30×18/5=108

ANSWER

A freely falling body takes 't' second to travel first (1/x)distance. Then, time of descent is

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A freely falling body takes't' second to travel first (1/x)distance .Then time of descent is

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

THE DIRECTION OF PROJECTILE AT CERTAIN INSTANT IS INCLINED AT ANGIE ALPHA TO THE HORIZONTAL AFTER T SEC. IF IT IS INCLINED AT AN ANGLE BETA THEN THE HORIZONTAL COMPONENT OF VELOCITY IS

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

the maximum height H and time of flight T related as

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Rahul Poddar 8 years, 2 months ago

H=u2sin^2○ and T=2usin○ from this H/T=1/4usin○,4H=Tusin○

Rahul Poddar 8 years, 2 months ago

H=u2sin2○/2g and R=u2sin2○/g from this H/R=1/4 tan○,4H=Rtan○

ANSWER

a man in a Boat crosses a river from point a if he rows perpendicular to the bank he reached point C in 10 minutes If the man heads at a certain angle Alpha to the straight line AB is against the current he reaches point B in 12.5 minutes

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A body of mass 5kg stands at one end of a stationary plank of length 3 M lying on a smooth surface the man walks to the other end of the plank if the mass of the plank is hundred kg the distance that the man moves relative to the ground is 6 metre then find x

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

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