Question

What is the acceleration of a racing car if it's speed is increased uniformly from 44 m /s to 66 m / s over an 11 second period ?

Answer 1

The average acceleration of a racing car that increases its speed uniformly from 44 m/s to 66 m/s over 11 seconds is 2 m/s².

Step-by-step explanation:

To calculate the acceleration of the racing car, we need to use the formula for acceleration, which is a = Δv / t, where Δv is the change in velocity and t is the time taken for the change.

In this case, the initial velocity vi is 44 m/s and the final velocity vf is 66 m/s, giving us a change in velocity (Δv) of 66 m/s - 44 m/s = 22 m/s. The time t is given as 11 seconds.

Using the formula:

a = Δv / t = 22 m/s / 11 s = 2 m/s²

Therefore, the average acceleration of the car is 2 m/s².

Answer 2

the acceleration of the race car is 2 m/s²

Step-by-step explanation:

Given;

initial velocity of the race car, u = 44 m/s

final velocity of the race car, v = 66 m/s

time of motion of the race car, t = 11 s

The acceleration of the race car is calculated as;

`a = (v-u)/(t) \\\\a = (66-44)/(11) \\\\a = 2 \ m/s^2`

Therefore, the acceleration of the race car is 2 m/s²