A body is pulled over a distance of 500m by a force of 20N. If…

Physics WAEC 2011

A body is pulled over a distance of 500m by a force of 20N. If the power developed is o.4 kW, calculate the time interval during which the force is applied

  • 0.2s
  • 2.5s
  • 25.0s checkmark
  • 250.0s

The correct answer is: C

Explanation

t = \(\frac{fs}{p} = \frac{20 \times 500}{0.4 \times 1000} = 25s\)
Previous Question Next Question

Leave A Comment