Question

A body of mass25 g is moving with a constant velocity of 5 m/s on a horizontal frictionless surface in vacuum.what is the force acting on the body

Answer 1

mass = 25 g

accel= 0( because constant velocity)

so,

F= ma

= 25*0

= 0N

Answer 2

Given :

Mass of body , m = 25 g .

It is moving with a constant velocity of , v = 5 m/s .

To Find :

The force acting on the body .

Solution :

We know , force F is given by :

F = ma     ....( 1 )

Here , m is the mass of object and a is the acceleration .

Here , the object of moving with the constant velocity .

Therefore , its acceleration is zero , $a=0\ m/s^2$ .

So , putting the value of acceleration in equation 1 , we get :

F = 0 N .

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

Learn More :

Laws of motion

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