Problem

An elevator is going up with an upward acceleration of

1 \text{ m/s}^2

. At the instant when its velocity is

2 \text{ m/s}

, a stone is projected upward from its floor with a speed of

2 \text{ m/s}

relative to the elevator, at an elevation of

30^\circ

. a. Calculate the time taken by the stone to return to the floor. b. Sketch the path of the projectile as observed by an observer outside the elevator. c. If the elevator was moving with a downward acceleration equal to

g

, how would the motion be altered?

Browse the problem library