Question

an object of mass 2kg is moved on the horizontal surface by a force of 80 newton and travelled a distance of 10 metre. calculate
work done by applied force.
work done by force of gravity.
determine the acceleration of body ​

Answer 1

Given:-

• Mass of Object = 2kg

• Force applied = 80N

• Distance travelled = 10m

To Find:-

• The work Done by body.

• The work Done by force of gravity.

Formulae used:-

• w = F × s

Where,

• F = Force
• s = Distance
• w = Work Done

Now,

→ w = F × s

→ w = 80 × 10

→ w = 800J

Hence, The work done is 800J

→ The work done by force of gravity is zero because force act perpendicular to the displacement.

Answer 2

Answer:

✯ Given :-

• An object of mass of 2 kg is moved on the horizontal surface by a force of 80 N and travelled a distance of 10 m.

✯ To Find :-

• What is the work done by applied force.

✯ Formula Used :-

✭ $\boxed{\bold{\large{\rm{\green{W = F\: ×\: s}}}}}$ ✭

✯ Solution :-

⋆Given :-

• Force (F) = 80 N
• Displacement (s) = 10 m

According to the question by using the formula we get,

⇒ W = 80 × 10

➠ W = 800 J

$\therefore$ The work done by applied force is 800 J.

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