1.
An object starts from rest and moves with a constant acceleration of 2 m/s². What is its velocity after 5 seconds?
A
10 m/s
B
2 m/s
C
20 m/s
D
5 m/s
View Answer
Correct Answer: A — 10 m/s
Explanation:
Using v = u + at, we get v = 0 + 2 × 5 = 10 m/s.