Question
Question: A horizontal force of 5 N is required to maintain a velocity of 2 m/s for a block of 10 kg mass slid...
A horizontal force of 5 N is required to maintain a velocity of 2 m/s for a block of 10 kg mass sliding over a rough surface. The work done by this force in one minute is
A
600 J
B
60 J
C
6 J
D
6000 J
Answer
600 J
Explanation
Solution
Work done = Force × displacement = F × s = F × v × t
= 5 × 2 × 60 = 600 J.