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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: \[ P = m \times v \] ...
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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`