Question

A car starts from rest . if the velocity of the car becomes 15m/s after 5 sec calculate the acceleration of the car​

Answer 1

An easy way to remember how to solve acceleration problems is to remember the units for acceleration: meter per square second, or m/s^2

Since the car starting from rest it’s initial velocity must be 0 m/s, so the change in velocity is simply 15 m/s. Doing so in 5 seconds,

acceleration = change in velocity/change in time

a = (v final - v initial)/(t final - t initial),

therefore,

a = (15–0)/(5–0) = 15/5 = 3 m/s^2

Answer 2

$\large{\underline{\underline{\bf{Solution:-}}}}$

Given :-

• V(final velocity) = 15 m/s
• U(initial velocity) = 0 m/s
• Time taken = 5 sec

To Find:-

• Acceleration = ?

Explanation:-

• Using formula

a = (v - u)/t

$a = \frac{15 - 0}{5} \\ \\ \implies \: a = \frac{15}{5} \\ \\ \implies \: \fbox{a \: = 3 m/s²}$