Question

If the mass of an object

is 50 kg and it moves with an acceleration of 4 ms-2

. Find the force applied

on the object?​

Answer 1

By Newton's second law

Force is propotional to rate of change of momentum and we finally have

F = dp/dt =d (mv)/dt = dm/dt*v+ m*dv/dt (But as per Einstein’s equation mass can be assumed to be constant at velocities <<< speed of light ) so this equation can be simplified to

=m*dv/dt = ma

Hence force required is equal to mass*acceleration = 50kg * 2ms

Answer 2

$\sf{Answer}$

Step by step explanation:-

Given:-

• Mass of the object = 50kg
• Acceleration of a body is 4 m/s²

To find :-

Force acting on a body

Formula implemented

Force = mass × acceleration

F = ma

_________________

Force definition according to formula :-

That means force is nothing but product of mass and acceleration

Lets do !

F = m a

F = 50 (4)

F = 200 N

Here N is nothing but newton

unit of force is newton

So, force acting on a body is 200N

_____________________________

Know more :-

Some equations of motion :-

S = ut + 1/2 at²

S = vt - 1/2 at²

v = u + at

u = v -at

v² - u² = 2as

S = v²-u²/2a