Question

A machine does 20,000 joules of work in 50 seconds. What is its power in watts?

Answer 1

The power of machine in watts : 400

Further explanation

Given

W=work = 20,000 J

t = time = 50 s

Required

Power

Solution

For mechanical power equation :

`\tt \larged{\boxed{\bold{P=(W)/(t)}}}`

P = Joule/s = watt

Input the value :

P = 20000 Joule : 50 s

P = 400 watt