PHYSICS [2 Mark Question Answer]

Given,
Work done = 15 J
Force applied = 60 N
Therefore,
Work done= Force × Displacement
15=60 × Displacement
Displacement= 15/60​
Displacement = 0.25 m
The displacement produced in the table is 0.25 m.

Work done= Force × Displacement
Given,
Work done = 1000 J
Displacement = 10m
Therefore,
Work done= Force × Displacement
1000=Force×20
Force=201000​
Force=50N
The magnitude of force applied by the boy is 50 N.

Work done = Force × Displacement
Given, Force = 15 N
Displacement = 5 m
Therefore,
Work done = 15×5 = 75 J
The work done is 75 Joule.

The SI unit o f work or energy is joule and they have same SI unit because energy is the form of work that is stored and work is the one that is used. Therefore, work and energy, while not synonyms, are consistent with respect to the object. So they both have the same SI unit.