Question

A truck and a car are moving with same kinetic energy. They are brought to rest by the application of brakes which provide equal force.

• A. both will cover equal distance
• B. the truck will cover a greater distance
• C. the car will cover a greater distance
• D. none of the above

Answer 1

Answer: (B)

the truck will cover a greater distance

We know that, $u^2=2as$ (as final velocity will be zero).

$\Rightarrow$ $s=m\frac{u^2}{2F}$.

truck has greater mass so distance will be more for truck yhan the car.