5. You are standing at the observation point at Niagara falls, 82 m above the falls, and you decide you want to see how long it will take for your Mom's camera to drop into the falls. You drop it and let gravity take over. How long does it take to reach the falls? You aren't quite satisfied, so you borrow your sister's camera, and throw it downward with an initial velocity of 15.0 m/s. Now how long does it take for her camera to go plummeting into the falls, never to be retrieved? g = 9.8 m/s²​