Question

Your friend is working on a problem with a 100 gram ball attached to a 0.6 m string being swung around in a circular path contained vertical plane. Your friend says "I know the tension force in the string at the top of the circular arc because the ball is moving with a speed of 2 m/s." You look at their work and they used a free body diagram with the force of gravity and tension force. They incorporated Newton's 2nd Law in their solution.

You want to help your friend, so what do you tell them?

You need to work out your solution again, because your answer for the tension force is wrong.

There is no way you can get the correct answer with the information given in the problem.

Good job you used a free body diagram and Newtons 2nd Law so you must have the correct answer!

You only have the tension force and the force of gravity in your free body diagram, you need to include the centripetal force as well.

Answer 1

az Centra petal force a I ting acting tow and the v2 Centre 2 By Second law of mohon Fret = ma my2 =) TE muz - me mg +T= ४ Hence, correct choice is lo Good job you used a free body diagram and Newton's 2nd law So you must have the correcto Answer"