Question

A crane pulls up a car of mass 500kg to a vertical height of 4m. So, work done by the crane is:

Answer 1

Answer:

20 Kj

Explanation:

see answer here is as follows

work done= m ×g×h

m=500 kg

h=4 m

g=10 m s-2

so, w = 500× 4 × 10

=20000J

20 KJ