The velocity of a car changes from 10 m/s east to 30 m/s east in 4 seconds what is the acceleration of the car

Answer: 5 m/s 2

To get the acceleration of a car, you need to know first the difference in the change in speed of a car then divided by time of the change. This can be expressed as acceleration = (change in speed) divided by (time for the change). So 30 m/s minus 10 m/s is equal to 20 m/s divided by 4 seconds and the quotient is 5 m/s2.