Question

A force F = 4i + 3 j + 2k
$ $ $
produces a displacement of S = 2i + 4 j + 5k
$ $ $
. Find the work done.

Answer 1

Answer:

30 joules.

Explanation:

Work done W = F.S

=> W = ( 4i + 3j + 2k )( 2i + 4j + 5k )

=> W = 8 + 12 + 10

=> W = 30 joules.