Question

A car accelerates at 3 m/s/s from 15 m/s to 50 m/s. How much time will it take to
reach 50 m/s?

Answer 1

Answer:

here is your answer

Explanation:

Given Final velocity (v) = 50 m/s

Initial velocity (u) = 30 m/s

Acceleration (a) = 2.5 m/s

2

We know v = u + at

∴ 50 = 30 + 2.5 t

⇒ 50 - 30 = 2.5 t

⇒

2.5

20

= t or 8 = t

∴ Time taken to accelerate = 8 seconds

Answer 2

Answer:

15s

Explanation:

v=u+at

v=50 m/s

u=15 m/s

a=3 m/s^2

t=(v-u)/a

=(50-15)/3

=15s