Question

derive the expression of force

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Answer 1

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As we know ;

Force = Mass × Acceleration

Dimension of mass = [M]

Dimension of acceleration = [LT-2] 

So,force can be dimensionally expressed as :

Force = [MLT-2]

Answer 2

ANSWER:

ANSWER

According to II law

F∝ (mv−mu)÷t

F∝ma(∵ (v−u)÷t =a)

F=kma(k−a constant)

The force required to produced an acceleration of 1 m/s² on a body of mass 1 kg is 1N

1=k××1×1

k=1

∴F=1×ma

F=ma