Question

a car takes off from rest and covers a distance of 80m on a straight road in 10s. Calculate the magnitude of its acceleration​

Answer 1

The magnitude of the acceleration is 1.6 m/s².

Step-by-step explanation:

We can find the magnitude of the acceleration by using the following equation:

`x_(f) = x_(0) + v_(0)t + (1)/(2)at^(2)`

Where:

`x_(f)`: is the final position = 80 m

`x_{0`: is the initial position = 0

`v_(0)`: is the initial speed = 0 (it starts from rest)

a: is the acceleration =?

t: is the time = 10 s

Hence, the acceleration is:

`a = (2x_(f))/(t^(2)) = (2*80 m)/((10 s)^(2)) = 1.6 m/s^(2)`

Therefore, the magnitude of the acceleration is 1.6 m/s².

I hope it helps you!