Question

if f-3i+5j+2kis acting on the particle of displacement s-2i+3j+1k then calculate is work done​

Answer 1

Answer:

w=f.s

w= 3×2+ 5×3+2×1

w=5+15+2= 22

w=22J

Answer 2

Here, F = 3i + 5j +2k

S = 2i + 3j + 1k

W = ?

Now, W = F.S

= (3i+5j+2k).(2i+3j+1k)

= 3×2+5×3+2×1

= 6+15+2

= 23 Unit.