How many watts of power do you expend when you exert a force of 0.50N that moves a book 2.1m in a time interval of 1.1s ?

Question

Express your answer to two significant figures and include the appropriate units.

Answer 1

P = F*d/t = 0.5 * 2.1/1.1 = 0.955 J/s =
0.955 Watts.