Question

A sports car accelerates from rest for 5 seconds reaching a velocity of 23.0 m/s.
a. What is the acceleration of the car?
Known:
t=
vi =
vf=
Unknown:
a =?
Equation:
vf=vi tat

Answer 1

Answer:

4.6 m/s²

Explanation:

The acceleration of an object given it's velocity and time taken can be found by using the formula

$a = \frac{v - u}{t}$

where

v is the final velocity

u is the initial velocity

t is the time taken

a is the acceleration

Since the body is from rest u = 0

From the question we have

$a = \frac{23 - 0}{5} = \frac{23}{5}$

We have the final answer as

4.6 m/s²

Hope this helps you