Question

A small washer is taped to a golf ball and the ball is hung from an electromagnet. When a trigger is activated the electromagnet will shut off and the golf ball will fall through a height of 75 cm to land on a time of flight pad. Determine the amount of time it will take for the ball to impact the time of fight pad once the trigger is activated. (Ignore air resistance)

Answer 1

h=1/2 g t^2

t=sqrt (2*.75/9.8) seconds

Answer 2

.75 = (1/2)9.8*t^2
t^2 = .153
t = .391 second

Answer 3

Thanks for the help. It is much appreciated!

Answer 4

You are welcome.