Jennifer works for an automaker and tests the safety performance of cars. She watches a 2,000-kilogram car crash into a wall with a force of 30,000 newtons. What’s the acceleration of the car at impact?
Answer:
15m/s²
Explanation:
According to the newtons second law of motion,
Force = mass × acceleration
F = ma
Acceleration = Force/mass
Given Force = 30,000N
Mass = 2,000kg
Acceleration = 30,000/2,000
Acceleration = 15m/s²
Acceleration of the car after impact will be 15m/s²