A mass of 2.5kg is raised by a height of 8m in 36 seconds using an electronic motor. Calculate the power of the motor.
Power = Work / Time. Work = mgh = 2.59.818 = 196.2 J. Power = 196.2 (J) / 36 (Seconds) = 5.45 W.
MV
Related Physics GCSE answers
All answers ▸Using newtons laws explain how a falling object can reach terminal velocity (6)
A roller coaster car starts stationary at the top of a downwards slope. At the bottom of the slope, it has a speed of 30m/s. Use the conservation of energy to find the vertical height of the slope. (Use g=10 m/s^2)
A car's speed changes from 10m\s to 40m\s in 10 seconds. What is its acceleration?
What is the evidence for the Big Bang theory?