5. A 0.6 kg ball is dropped with no initial speed from a height of 8...
5. A 0.6 kg ball is dropped with no initial speed from a height of 8 m. The ball bounces off the ground vertically, reaching a height of 7 m. Calculate:
(i) The speed of the ball when it hits the ground.
(ii) The speed of the ball when it nounces off the ground.
(iii) The (magnitude of the) impulse provided by the ground.
6. A 0.2 kg ball hits a bat at 20 m/s and bounces back at 40 m/s. If the ball was in contact with the bat for 2 ms (i.e. 2 milliseconds), what is the average force generated by the bat on the ball?
7. A 500 kg cart is moving East at 20 m/s, when it steers and brings itself moving still at 20 m/s but in a North direction.
(i) Did the cart accelerate?
(ii) Did the linear momentum of the cart change?
(iii) Calculate the magnitude of the impulse provided to the cart.
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5. A 0.6 kg ball is dropped with no initial speed from a height
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