A car travels 40 miles in 30 minutes. a. What is the average velocity in kilometers/hour?...

Question

Question

A car travels 40 miles in 30 minutes.

a. What is the average velocity in kilometers/hour?

b. If the car weighs 1.5 tons, what is its kinetic energy in joules (Note: you will need to convert your velocity to m/s)?

c. When the driver applies the brake, it takes 15 seconds to stop. How far does the car travel (in meters) while stopping?

d. What is the average acceleration of the car (in m/s2) during braking?

Answer 1

Answer #1

Answer 2

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