Question

A crane lifts a load of 1000kg very slowly through a vertical distance of 150cm calculate the work done against gravity if g=10.0ms^2

Answer 1

Answer:

ANSWER IS 15 KJ

Explanation:

see answer is

m= 1000kg

h= 150 cm= 1.5 m

g = 10

work done= m×g×h

=1000×1.5×10

=1000×15

=15000 J

=15 KJ