Physics High School

A car is coasting backwards downhill at a speed of 3.0 m/s when
the driver gets the engine started. After 2.5 sec, the car is
moving
uphill at 4.5 m/s. Assuming that uphill is the positive
direction, what is the car's average acceleration?

Answers

Answer 1
hope this helps you :)
A Car Is Coasting Backwards Downhill At A Speed Of 3.0 M/s Whenthe Driver Gets The Engine Started. After
Answer 2

If a car is coasting backward downhill at a speed of 3. 0 meters / s when the driver gets the engine started. After 2.5 sec, the car is moving uphill at 4.5 meters / second . Assuming that uphill is the positive direction the average acceleration of the car would be  3.0 meters / second².

What is acceleration?

The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter / seconds².

As given in the problem If a car is coasting backward downhill at a speed of 3. 0 meters / s when the driver gets the engine started. After 2.5 sec, the car is moving uphill at 4.5 meters / second .

The average acceleration of the car  = + 4.5 - ( - 3 .0) / 2.5

                                                              = 3.0 meters / second ²

Thus , the average acceleration of the car would be 3.0 meters / second².

To learn more about acceleration here, refer to the link given below ;

brainly.com/question/2303856

#SPJ5

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