Question

If a particle of mass 8 kg is moving with constant velocity of 20 m/s then net force on that particle will be?​

Answer 1

Given:

• Mass of particle = 8 kg
• Velocity = 20 m/s

To find:

• Net force on the particle ?

Calculation:

• Net force on any moving object is defined as the instàntaneous rate of change of linear momentum of the object.

And linear momentum changes only when the velocity of the object increases or decreases.

• In the question, it is clearly mentioned that the particle is moving with a constant velocity of 20 m/s.

• This means the rate of change of linear momentum is zero, because the linear momentum is constant (and not changing).

• Hence, the net force acting on the particle is also zero.

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