Question

Ravi applied a force of 10n and moved a book 30 cm in direction of force. how much was the work done by ravi

Answer 1

Given :

Force =F=10N
Displacement =S=30cm=30/100=0.3m
Workdone =?

Formula to be used:

Workdone =Force X displacement
                 =10x0.3
                  =3N-m or Joules 

∴Workdone is 3 joules

Answer 2

Answer:

Work done by Ravi is 3 joules.      

Step-by-step explanation:

Given : Ravi applied a force of 10 n and moved a book 30 cm in direction of force.

To find : How much was the work done by Ravi?

Solution :

The force applied is F=10 N

The displacement occur is s=30 cm

Convert cm into m,

1 cm = 0.01 m

30 cm = 0.3 m

The formula to find work done is

$W=F\times s$

Substitute the value in the formula,

$W=10\times 0.3$

$W=3 J$

Therefore, Work done by Ravi is 3 joules.