Question

A car with a mass of 3,500lbs accelerates negatively from 35m/s to 8m/s in 8s. What is the

Answer 1

Answer:

$a=-3.37\ m/s^2$

Explanation:

Given that,

A car accelerates negatively from 35m/s to 8m/s in 8s.

We need to find the car's acceleration.

Initial speed, u = 35 m/s

Final speed, v = 8 m/s

Time, t = 8 s

The acceleration of an object is equal to the rate of change of velocity. So,

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

Put all the values,

$a=\dfrac{8-35}{8}\\\\a=-3.37\ m/s^2$

So, the acceleration of the car is equal to $-3.37\ m/s^2$.