Question

A car is traveling at 31 m/s east when it suddenly hits it brakes to avoid hitting a

penguin standing in the road. The car comes to a stop in 4 seconds. What is the
acceleration of the car (in m/s2) while braking?

Answer 1

Step-by-step explanation:

Acceleration= change in velocity/time

=(0-31)/4

a=-7.75m/s2