Question

A load of mass 30 kg of lifted up by 7.0m. Calculate the work done. (Take g= 9.8 m s-2)​

Answer 1

Answer :-

Given :-

• Mass = 30 kg
• Distance = 7 m
• Acceleration due to gravity = 9.8 m/s²

To Find :-

• Work done

Solution :-

We know that,

Work done = Force × Displacement

Here, we are given displacement, So we first need to find the force -

Force = Mass × Acceleration

F = 30 × 9.8

F = 294 N

Now we have,

• Force = 294 N
• Displacement = 7 m

Work done = Force × Displacement

= 294 × 7

= 2058

Work done = 2058 J