Home
Class 11
PHYSICS
A ball falls towards the earth. Which of...

A ball falls towards the earth. Which of the following is correct?

A

if the system contains ball, the momentum is conserved

B

if the system contains earth, the momentum is conserved

C

if the system contains the ball and the earth, the momentum is conserved

D

if the system contains the ball and the earth and the sun, the momentum is conserved

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A ball A moving with momentum 2hati + 4hatj collides with identical ball B moving with momentum 6hatj . After collision momentum of ball B is 10 hatj . Which of the following statement is correct?

A metalic ball strikes a wall and drops dead whereas tennis ball having the same mass and velocity bounces back. Which of the following is correct ?

A satellite is revolving around earth in a circular orbit at a height (R )/(2) from the surface of earth. Which of the following are correct statements about it (M = mass of earth, R = radius of earth, m = mass of satellite) ?

If two balls of given masses and charges are released, which of the following is the correct arrangement in equilibrium?

Consider the graph shown for the position of a ball attached to a spring as it oscillates in simple harmonic motion. Which of the following is correct? The speed of ball is greatest at 2s (ii)The speed of ball is greatestat 4s (iii)The acceleration of ball is greatest at 2s (iv)The acceleration of ball is greatest at 6s

A ball of mass m is attached to a string whose other end is fixed. The system is free to rotate in vertical plane. When the ball swings, no work is done on the ball by the tension in the string. Which of the following statement is the correct explanation?

Which of the following is a ball and socket joint?

A particle falls towards the earth from inifinity. The velocity with which it reaches the earth is surface is

A body which is initially at rest at a height R above the surface of the earth of radius R, falls freely towards the earth. Find out its velocity on reaching the surface of earth. Take g= acceleration due to gravity on the surface of the Earth.

A small block of super dense material has mass 2 xx 10^(24) kg . It is at a height h lt lt R . It falls towards the earth.Find its speed when it is at a height ( h )/( 2)