Question

The figure below shows a ball of mass m=1.6 kg which is connected to a string of length L=2.0 m and moves in a vertical circle. Only gravity and the tension in the string act on the ball. If the velocity of the ball at point A is v₀=10.7 m/s, what is the tension T in the string when the ball reaches the point D?

A m n 1 •C B

Answer 1

for A to D Ya IT A energy conservation de VA tovo tug L= f aviz tvo? + gl of the 2 2 10.7 - 249.8 Evo -9.74/s] so) T + mg = in Vg2 L T = 1-6 x 9.742 1.669.8 2 ł = 17= 60.23 ~ Aswor CS Scanned with Cam Scanner