A 2-kg toy car accelerates from 5 to 10 m/s in 2 seconds. Find the applied force.
Force applied is [tex]5\frac {kgm} {s^2}[/tex].
Force is defined as something which changes or tends to change the velocity of a body. And acceleration is defined as the rate of change of velocity of a body per time. Both of them are vector quantities.
The initial velocity of the body = 5 m/s.
The final velocity of the body = 10 m/s.
So the change in velocity = 10 - 5 m/s = 5m/s.
Time period = 2 seconds.
So acceleration =[tex]\frac52 m/s^2[/tex]= [tex]2.5 m/s^2[/tex]
The force is defined as the product of mass and acceleration of the body.
Mass of body = 2 kg.
So, force applied = [tex]2 \times 2.5 kgm/s^2[/tex]. =[tex]5kgm/s^2[/tex].
