Author Question: Lets say that you are holding a mass from a string and that you are in an elevator. If you plucked ... (Read 28 times)

leilurhhh · **on:** Jul 28, 2018

Lets say that you are holding a mass from a string and that you are in an elevator. If you plucked the string, in which case would the ensuing waves have the greatest speed?
1.if the elevator were accelerating upward
2.if the elevator were accelerating downward
3.if the elevator were moving upward with constant speed
4.if the elevator were moving downward with constant speed

Question 2

A 1 kg mass is suspended on the end of a string and it is swinging back and forth. If the string is plucked, the speed of the pulse
1.is fastest when the mass is at its highest point in the swing.
2.is fastest when the mass is at its lowest point in the swing.
3.is fastest when the mass is in the middle of its way down from the highest to the lowest point in its swing.
4.has the same speed at all points of the swing; the pulse's speed is not a function of the position of the mass as it swings.