Question

a ball of mass 250 grams moving with a speed of 2 m/s hits a wall normally.it rebounds with same speed.if the two were in contact fir 10^-3 s,the average force extended by the wall on the boll is

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Answer 1

Answer:

A ball of mass 250 g moving with a speed of hits a wall normally . it rebounds with the same speed . If the two were in contact for 10

−3

s, the average force exerted by the wall on the ball is

A

4× 10

−3

N

B

2× 10

−3

N

C10

−3

N

D10

−2

N