Question

a. b. directed east. directed west. directed up. directed down. zero. A ball of mass 300 g is whirled on the end of a string in a vertical circle of radius 75.0 cm, as shown. At the top of the circle the speed of the ball is 5.00 m/s. The tension in the string in this position is equal to a. b. c. d. e. zero 2.94 N 7.06 N 10.0 N 12.9 N A satellite is in a circular orbit around the Earth. To increase the speed of the satellite while maintaining a circular orbit, one would need to a. increase in the satellite's mass. decrease in the satellite's mass. increase in the satellite's orbital radius. decrease the satellite's orbital radius. none of the above.

for the highlighted question which is the answer?

Answer 1

Use Newton’s law of motion for equation of motion at the top of the vertical circle to find the required value of tension as shown below***********************************************************************************************
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toP at T+mo my2 (0.319) 03%)Sm) 075m 7.06 T =