Question

find the initial velocity of a car which is stopped in 5 seconds by applying breaks. The retardation due to breaks in 5 m/s2​

Answer 1

Answer:

25 m/s

Step-by-step explanation:

$eq. \: of \: motion \\ v = u + at \\given \: v = 0 \\ retardation = 5 \\ t = 5 \\v = u + ( - a)t \\ u = at \\ u = 5 \times 5 \\ u = 25 \frac{m}{s}$