Question

A car is moving at 15 m/s. When its velocity increases to 30 m/s in 3 seconds, find the acceleration of the car.


pls tell me this answer​

Answer 1

v = u + a*t
Initial Velocity u

m/s
Final Velocity v

m/s
Time t

s
Acceleration a

m/s²
RESET VALUES
ANSWER
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