Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

The diagram below presents the position and elapsed time of a motorbike that starts from rest and accelerates at a constant rate. What is the average velocity of the motorbike during first 5 s? (positions: 0s:0m, 1s:2m, 2s:8m, 3s:18m, 4s:32m, 5s:50m)
Options
A 0 m/s
B 5 m/s
C 10 m/s
Correct Answer
D 15 m/s
Correct Answer

Option C is the correct answer.

Detailed Explanation

Average velocity = total displacement / total time = (50 - 0)/5 = 10 m/s.

Hint

v_avg = Δx/Δt.

Question Info