Question

1) The unit of power is

A. Watt
B. Joules
C. Newton
D. Meter

2) How long does Samah need to do 100J of work with 50W?
A. 2s
B. 0.5s
C. 5000s
D. None of the above

Answer 1

1) the unit of power is A.Watt

2)100J=50W

100=50s

divide both sides by 50s

S=2s(A)