A rock is kicked from ground level at an 80 degree angle above the horizontal. The vertical component of the velocity is 15.0 m/s upwards. The rock...

A rock is kicked from ground level at an 80 degree angle above the horizontal. The vertical component of the velocity is 15.0 m/s upwards. The rock lands in a hole that is 20.0 m below ground level. How long is the rock in the air, from the instant it is kicked until it hits the bottom of the hole?