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(B): Derive the relation between force …

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(B): Derive the relation between force and acceleration . (C): Define the SI unit of force.

Posted by Abhay Kumar 4 years, 5 months ago

Yogita Ingle 4 years, 5 months ago

According to the Newton's first law of motion the force is directly related to the change in momentum of a body, so

F = dp/dt

now momentum is given a. p = mv

where m is the mass and v is the velocity

so,

F = d(mv)/dt = m(dv/dt)

or we get

F = ma

Definition of one unit force

The movementum is defined as the product of its mass and velocity.

movementum = mass x velocity

or p = m x v

where p = movementum

m = mass (kg)

v = velocity (m/s)

SI unit is kg-m/s

The total momentum of the gun and bullet before firing is zero as both of them are at rest.

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