1. Tardigrade
  2. Question
  3. Physics
  4. An engine of power 7500 W makes a train move on a horizontal surface with constant velocity of 20 ms -1. The force involved in the problem is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. An engine of power $7500 \,W$ makes a train move on a horizontal surface with constant velocity of $20\, ms ^{-1}$. The force involved in the problem is

Work, Energy and Power

Solution:

Power $=7500\, W =7500 \,Js ^{-1}$,
Velocity $v=20\, ms ^{-1}$
$P=F v$ or $F=\frac{P}{v}=\frac{7500\, Js ^{-1}}{20 \,ms ^{-1}}=375\, N$