What is the impact speed when a car moving at 95km/h bumps into the rear of another car traveling in the same direction at 93km/h?
Is this a trick question?
What can you do, if not subtract speeds?
95-93 = 2km/h
To find the impact speed when two cars collide, you need to calculate the relative velocity between them. In this case, since both cars are traveling in the same direction, you can subtract their velocities to determine the relative speed.
First, convert the velocities from km/h to m/s to maintain a consistent unit.
Car 1 velocity: 95 km/h = 26.39 m/s
Car 2 velocity: 93 km/h = 25.83 m/s
Next, calculate the relative velocity by subtracting the velocity of the rear car (Car 2) from the velocity of the front car (Car 1).
Relative velocity = Car 1 velocity - Car 2 velocity
= 26.39 m/s - 25.83 m/s
= 0.56 m/s
Therefore, the impact speed of Car 1 when it bumps into the rear of Car 2 is 0.56 m/s.