Question

A car is traveling at a constant speed of 35 miles per hour. The driver accelerates for 2 hours, and now the car has a speed of 55 miles per hour. What acceleration was applied? (Applied Acceleration = (Final Speed - Initial Speed) / time)

a) 10 mph^2
b) 12.5 mph^2
c) 15 mph^2
d) 20 mph^2

Answer 1

a

Step-by-step explanation:

Acceleration = change in velocity / change in time

= (55 -35) mi/hr / 2 hr = 10 mi/hr^2

Answer 2

The driver applied an acceleration of 10 mph^2.

Step-by-step explanation:

The driver applied an acceleration of 10 mph^2

To find the acceleration, we can use the applied acceleration formula:

Applied Acceleration = (Final Speed - Initial Speed) / time

Given that the initial speed was 35 mph, the final speed was 55 mph, and the time was 2 hours, we can substitute these values into the formula:

Applied Acceleration = (55 mph - 35 mph) / 2 hours = 20 mph / 2 hours = 10 mph^2

Therefore, the acceleration that was applied is 10 mph^2.