Question

Moby goes up the other side of the half-pipe and stops. If that trip also took him 5 seconds, what was Moby's acceleration?

A) 0 m/s²
B) 2.5 m/s²
C) -2.5 m/s²
D) 5 m/s²

Answer 1

Moby's acceleration is -2.5 m/s², representing deceleration as he goes up the other side of the half-pipe and comes to a stop.

Step-by-step explanation:

If Moby goes up the other side of the half-pipe and stops after 5 seconds, we are assuming an initial velocity and a final velocity of zero. This defines a situation of deceleration, which is negative acceleration.

Since we have no numerical values specified for the velocities, but based on the common sense of the situation where Moby eventually stops, the correct answer must reflect this change in velocity towards a stop. Given the options, the answer that represents this physical scenario is (C) -2.5 m/s². This value answers the question: 'Moby's acceleration is -2.5 m/s²', signifying a reduction in speed over time until Moby stops.