Question

Calculate the net force acting on a body of mass 40 kg moving with a uniform velocity
of 2ms-1​​

Answer 1

Given :-

Mass of the body = 40 kg

Velocity of the body moving = 2 m/s

To Find :-

The net force acting on the body.

Solution :-

We know that,

• a = Acceleration
• f = Force
• m = Mass

According to the question,

Mass (m) = 40 kg

Acceleration (a) = 0 m/s

By using the formula,

$\underline{\boxed{\sf Force=Mass \times Acceleration}}$

⇒ force(m) = 40 × 0

⇒ force(m) = 0 N

Therefore, the net force acting on the body is 0 N.

Answer 2

Answer:

Given,

Mass =5 kg

Velocity =4m/s

Net force will be 0 . This is because an object moving with a uniform speed has zero acceleration, there is no change in velocity.

And according to Newton's second law of motion, we know, Acceleration is directly proportional to Force.

If acceleration =0

Force = Mass × Acceleration

Force = Mass × 0

Force = 0

Thus, Net force acting on the body is 0.