Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

A car and a truck start from rest and accelerate at the same rate, but the car accelerates for twice the time. What is the ratio of their final speeds?
Options
A 1:2
B 2:1
Correct Answer
C 4:1
D 1:4
Correct Answer

Option B is the correct answer.

Detailed Explanation

Final velocity is proportional to time when acceleration is constant.

Hint

Use v = at.

Question Info