Home
Class 9
PHYSICS
A hockey ball of mass 200g travelling fr...

A hockey ball of mass `200g` travelling from west to east at `10m//s` is struck by a hockey stick. As a result, the ball gets turned back and now has a speed of `5m//s`. If the ball and hockey stick were in contact for `0.2s`, Calculate
(i) initial and final momentum of the ball
(ii) rate of change of momentum of the balll
(iii) force exerted by hockey stick on the ball.

Text Solution

AI Generated Solution

To solve the problem step by step, we will calculate the initial and final momentum of the hockey ball, the rate of change of momentum, and the force exerted by the hockey stick on the ball. ### Step 1: Calculate the Initial Momentum of the Ball The formula for momentum (P) is given by: \[ P = m \times v \] ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • FORCES AND LAWS OF MOTION

    PRADEEP|Exercise ASSESSSMENT THROUGH PAPER-PEN TEST|29 Videos
  • FORCES AND LAWS OF MOTION

    PRADEEP|Exercise MULTIPLE CHOICE QUESTIONS|28 Videos
  • FORCES AND LAWS OF MOTION

    PRADEEP|Exercise QUIZ TESTING|12 Videos
  • FLOTATION

    PRADEEP|Exercise Problem For Practice|6 Videos
  • GRAVITATION

    PRADEEP|Exercise Model Test paper (1)|36 Videos

Similar Questions

Explore conceptually related problems

A hockey ball of mass 200 g travelling at 10 m//s is struck by a hockey stick so as to return it along its original path with a velocity of 5 m//s . Calculate the change in momentum of the hockey ball by the force applied by the hockey stick.

A hockey ball of mass 200g travelling at 10 ms^-1 is struck by a hocket stick so that it returns along its original path with a velocity at 5 ms^-1 Calculate the change of momentum occurrd in the motion of the hockey ball by the force applied by the hockey stick.

Knowledge Check

  • A stationary ball weighing 0.25 kg acquires a speed of 10m/s when hit by a hockey stick. The impulse imparted to the ball is

    A
    2.5 Ns
    B
    2.0 Ns
    C
    1.5 Ns
    D
    0.5 Ns
  • A 0.065 kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, causing it to move to the left with a speed of 15 m/s. If the ball remains in contact with the racquet for 0.020 s, what is the magnitude of the average force experienced by the ball?

    A
    0N
    B
    98 N
    C
    160 N
    D
    240 N
  • A ball weighing 10g hits a hard surface vertically with a speed of 5m//s and rebounds with the same speed The ball remains in contact with the surface speed The ball remains in contact with the surface for 0.01s The average force exerted by the surface on the ball is .

    A
    `100N`
    B
    `10N`
    C
    `1N`
    D
    `0.1N`
  • Similar Questions

    Explore conceptually related problems

    A ball of mass 0.5kg moving with a speed of 10m//s rebounds after striking normally a perfectly elastic wall. Find the change in momentum of the ball . If contact time with the wall is 0.1s , what force is exerted by wall?

    A ball of 0.5 kg mass moving with a speed of 10 m//s rebounds after strinking normally a perfectly elastic wall . Find the change in momentum of the ball.

    A ball of mass 50 g moving at a speed of 2.0 m/s strikes a placne surface at an angle of incidence 45^0 . The ball is reflected by the plane at equal angle of reflection with the same speed. Calculate a. the magnitude of the change in momentum of the ball b. the change in the magnitude of the mometum of the ball.

    A cricket ball of mass 150 kg is moving with a velocity of 12 m//s and is hit by a bat so that ball is turned back with a velocity of 20 m//s . The force of the blow acts for 0.01 s on the ball . Find the average force exerted by the bat on the ball.

    A cricket ball of mass 150g is moving with a velocity of 12 m/s and is hit by a bat so that the ball is turned back with a velocity ishit by a bat so that the ball is turned back with a velocity of 20 m/s. The force of blow acts for 0.01 s on the ball. What is the averate force exerted by the bat on the ball?