Momentum = mass x velocity, so 500kg x 2m/s = 1000 kg m/s
Not sure but just coming to say good luck and take your time
Therefore, the kinetic energy of an object is proportional to the square of its velocity (speed). In other words, If there is a twofold increase in speed, the kinetic energy will increase by a factor of four. If there is a threefold increase in speed, the kinetic energy will increase by a factor of nine.
Answer:

Explanation:
Impulse-Momentum relation:


We solve the equations in order to find the braking force:
