Question

a force f is equal to 45 + 2 j - 5 k and body moves along 4m along z axis find the work done

Answer 1

HERE COMES THE ANSWER

AS FROM GIVEN DATA

45 ----> X- axis

2--------> y axis

5 ---------> z axis

FORMULA OF WORK DONE

W= F.D

AS DISPLACEMENT IS ONLY IN Z AXIS SO WE'LL TAKE Z COMPONENT OF FORCE,❗❗

SO WE HAVE:-

W=5 × 4 = 20 J ☺☺❤