Question

a ball of mass 100g moving with a velocity of 10 m/s is stop by in 0.25seconds calculate the force applied by to stop the ball​

Answer 1

Answer:

Initial velocity of ball u=−10 m/s

Initial momentum P

i

=mu=0.1×(−10)=−1 kg m/s

Final velocity of ball v=10 m/s

Final momentum P

f

=mv=0.1×10=1 kg m/s

Time of action t=0.01 s

Using F×t=P

f

−P

i

Or F×0.01=1−(−1)=2

⟹ F=200 N

Answer 2

Answer:

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