Home
Class 12
PHYSICS
A ball falls freely from a height of 45m...

A ball falls freely from a height of 45m. When the ball is at a height of 25m, it explodes into two equal piece. One of them moves horizontally with a speed of `10ms^(-1)`. The distance between the two pieces on the ground is

A

10 m

B

20 m

C

15 m

D

30 m

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

A ball starts falling under the effect of gravitational force from a height of 45m. When it reaches a height of 25 m. When it reaches a height of 25 m it explodes into two pieces of mass ratio 1:2 . There is no change in the vertical motion of the piece after the explosion but they acquire horizontal velocity. If the heavier piece gains a horizontal velocity of 10ms^(-1) , then the distance between the two pieces when both of them strike the ground is

A ball falls on the ground fro a height of 2.0 m and rebounds up to a height of 1.5 m. Find the coefficient of restitution.

A metal ball falls from a height of 1m on to a steel plate and jumps upto a height of 81 cm. The coefficient of restitution of the ball and steel plate is

A bomb initially at rest at a height of 40 m above the ground suddenly explodes into two identical fragments. One of them starts moving vertically downwards with an initial speed of 10 m/s. If acceleration due to gravity is 10 m//s^2 , the separation between the fragments, 2 seconds after the explosion is

A ball dropped from a height of 2 m rebounds to a height of 1.5 m after hitting the ground. Then fraction of energy lost is

A ball is made to fall freely from a height. State the kind / kinds of energy possessed by the ball when it is just in the middle

A ball falls freely form a height onto and smooth inclined plane forming an angle a with the horizontal. Find the ratio of the distance between the points at which the jumping ball strikes the inclined plane. Assume the impacts to be elastic.

A ball of mass m moving with a velocity v along X-axis, strikes another ball of mass 2m kept at rest. The first ball comes to rest after collision and the other breaks into two equal pieces. One of the pieces starts moving along Y-axis with a speed v_1 . what will be the velocity of the other piece?

A ball of mass 10 g falls from a height of y 5 m. It rebounds from the ground to a height of 4m. Find : (a) the initial potential energy of the ball, (b) the kinetic energy of the ball just before the ground. striking the ground, (c) the kinetic energy of the ball after striking the ground ,and (d) the loss in kinetic energy on striking the ground . Take g=9.8 m s^(-2) .

A ball is made to fall freely from a height. State the kind / kinds of energy possessed by the ball when it is at the ground.