Question

A car started from rest and travels in uniform acceleration and its velocity becomes 40m/s in 10 seconds what is the intial velocity of the car​

Answer 1

Explanation:

Time (t) = 10 seconds

Accelerartion (a) =

We know v = u + at

$40 \frac{m}{s} = u + 2.5 \frac{m}{ {s}^{2} }$

$40 \frac{m}{s} = u + 25 \frac{m}{s}$

$u = (40 - 25) \frac{m}{s}$

$= 15 \frac{m}{s}$

initial velocity of the car = 15 m/s