Chapter 4: Think About It (48)

How can we write mechanical power in a manner similar to the electrical power?
→ Mechanical power can be written as: Mechanical Power (P) =\(Mechanical~Work~(W)\over time~(t)\) ∴ P = \(W\over t\)= \(F~.~s\over t\) If we resolve the displacement (s) in the direction of force, the above formula becomes: P = \(F~.~s~.~cos\theta\over t\) 2 Marks