Question

An object of mass 2kg is sliding with a constant velocity of

4m/s on a frictionless horizontal table. The force required to

keep the object moving with same velocity is​

Answer 1

Given:

An object of mass 2kg is sliding with a constant velocity of 4m/s on a frictionless horizontal table.

To find:

Force required?

Calculation:

• Force is a vector quantity characterized by the product of mass and acceleration of the object.

• Again, solution can be represented as the rate of change of velocity with respect to time.

$F = m \times a$

$\implies F = m \times \dfrac{v - u}{t}$

$\implies F = 2\times \dfrac{4 - 4}{t}$

$\implies F = 2\times \dfrac{0}{t}$

$\implies F = 0 \: N$

So, force needed is 0 Newton.

Answer 2

Answer:

0 N

Explanation:

I hope It is helpful

force =ma