Answer :
Answer:
540000 Newtons
Explanation:
F = m*a
Acceleration = [tex]\frac{Change in Velocity}{time}[/tex]
The van is originally travelling at 15m/s, if superman stops the car, then it ends with a velocity of 0m/s, and he does this in 0.5 seconds. Therefore the acceleration of superman stopping the van is [tex]\frac{0m/s - 15m/s}{0.5s} = -30m/s^2[/tex] (Final velocity - initial velocity) / Time
Mass of van is 18,000 kg.
Force = 18,000 kg * -30m/s^2
Note that force is scalar, so it is always positive regardless of the sign of acceleration.
540000 N