Lv 195 points

Ana B

Favorite Answers0%
Answers1
Questions3
  • Dropped tennis ball! Please help me to solve this problem... thanks a lot?

    After you drop a tennis ball of 0.5 kg from rest at a height of 3.8 m onto a hard floor, find the fallowing:

    a) what will be the speed of the ball at the instant of contact with the floor?

    Thank you!

    v=8.63m/s

    b) what force does the floor exert on the ball?

    (f)=?N

    c) Over what time does the force act in bringing the ball to rest?

    (delta)t=?s

    Thanks!

    2 AnswersPhysics1 decade ago
  • Dropped tennis ball - please help?

    After you drop a tennis ball of 0.5 kg from rest at a height of 3.8 m onto a hard floor, find the fallowing:

    a) what will be the speed of the ball at the instant of contact with the floor?

    v=8.63m/s

    b) what force does the floor exert on the ball?

    (f)=?N

    c) Over what time does the force act in bringing the ball to rest?

    (delta)t=?s

    Thanks!

    2 AnswersPhysics1 decade ago
  • How to find the force of a bullet?

    A bullet of mass 0.0018 kg initially moving at 486 m/s embeds itself in a large fixed piece of wood and travels 0.54 m before coming to rest. Assume that the acceleration of the bullet is constant.

    What force is exerted by the wood on the bullet? (in Newtons)

    3 AnswersPhysics1 decade ago