Question

A car advertisement states that a certain car can accelerate from rest to

27m/s in 4.9 seconds at a temperature of 75F. What is the acceleration of
the car?

Answer 1

Acceleration of the car = 5.51 m/s²

Step-by-step explanation:

Given:

Initial speed of car = 0 m/s

Final speed of car = 27 m/s

Time taken by car = 4.9 seconds

Find:

Acceleration of the car

Computation:

Using first equation of motion

v = u + at

Where

v = Final velocity

u = Initial velocity

t = Time taken

a = Acceleration

So,

v = u + at

27 = 0 + a(4.9)

a(4.9) = 27

a = 5.51 m/s²

Acceleration of the car = 5.51 m/s²