Question

a 50n box is lifted 2 meters in 3 seconds.

a. how much work is done for the box?

b. is the work or positive?

c. how much power is needed to lift the box?

Answer 1

F=G=50 N

L=F*d=50*2=100 J

is the work

P=L/t=100/3=33.33 W