Question

A 1300 kg sports car accelerates from 0 m/s to 28 m/s in 10 s. What is the average acceleration of the car?

1) 2.8 m/s²
2) 2.9 m/s²
3) 3.0 m/s²
4) 3.1 m/s²

Answer 1

The average acceleration of the car is 2.8 m/s², calculated using the change in velocity divided by the change in time.

Step-by-step explanation:

To calculate the average acceleration of the car, use the following formula:

a = ∆v / ∆t

where:

• a is the acceleration
• ∆v is the change in velocity (final velocity - initial velocity)
• ∆t is the change in time (final time - initial time)

In this case, the car accelerates from 0 m/s to 28 m/s over a period of 10 seconds, so:

∆v = 28 m/s - 0 m/s = 28 m/s

∆t = 10 s - 0 s = 10 s

Thus, the average acceleration is:

a = 28 m/s / 10 s = 2.8 m/s²

Therefore, the correct answer to the question is 1) 2.8 m/s².