Question

a pair of glasses is dropped from the top of a 36.0 m high stadium. a pen is dropped from the same position 2.21 seconds later. how high above the ground is the pend when the glasses hit the ground? (disregard air resistence. a=-g=-9.81 meters per second squared)

Answer 1

Calculate how long it takes the glasses to hit the gound.

36.0 = (g/2) t^2

t = 2.71 s

The pen will have been falling 2.71 - 2.21 = 0.50 seconds when the glasses hit the ground. Use that information to compute where pen is at that time.

You do that part.

Answer 2

39

Answer 3

A pair of glasses are dropped from the top of a 32.0 m stadium. A pen is dropped 2.00 s later. How high above the ground is the pen when the glasses hit the ground?