Question

An initially motionless test car is accelerated uniformly to 145 km/h in 8.23 s before striking a simulated deer. The car is in contact with the faux fawn for 0.395 s, after which the car is measured to be traveling at 60.0 km/h. What is the magnitude of the acceleration of the car before the collision

Answer 1

Explanation: We can use the formula:

Acceleration = (Final Velocity - Initial Velocity) / Time Taken

We know that the final velocity of the car is 60 km/h and the time taken to reach it is 8.23 seconds. So, we have:

Acceleration = (60 - 0) / 8.23 = 7.2 m/s²

Therefore, the acceleration of the car before the collision is 7.2 m/s².