Question

You push a friend sitting on a swing. She has a mass of 50 kg and accelerates at a rate of 4 m/s2. Find the force you exerted.

Answer 1

Answer:

force =mass *acceleration

force=50*4=200newton

Answer 2

Answer :-

›»› The force exerted are 200 Newton.

Given :-

• You push a friend sitting on a swing. She has a mass of 50 kg and accelerates at a rate of 4 m/s².

To Calculate :-

• The force exerted.

How to calculate?

Here in this question we have to calculate the force exerted. We can use Second law of Newton to calculate the force exerted which says F = ma.

Here,

• F is the Force.
• m is the Mass.
• a is the Acceleration.

Units,

• The unit of Force is Newton.
• The unit of Mass is kg.
• The unit of Acceleration is m/s².

We are asked to calculate the force.

So, we must calculate "F".

Given that,

You push a friend sitting on a swing. She has a mass of 50 kg and accelerates at a rate of 4 m/s².

Therefore,

• m = 50 kg.
• a = 4 m/s².
• F = ?

Calculation :-

From second law of Newton

==> F = ma

==> F = 50 × 4

==> F = 200

Hence, the force exerted are 200 Newton.

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Verification :-

==> F = ma

==> 200 = 50 × 4

==> 200 = 200

Here, LHS = RHS.

Hence Verified !