Question

A car initially at rest starts moving with a constant acceleration of 0.5 m/s2 and travels a distance of 25 m. Find 5m (i) Its final velocity. (ii) Time taken​

Answer 1

Answer:

(1) Final Velocity = 5 m/s

(2) Time Taken = 10 sec

Explanation:

$Initial Velocity (u) = 0\\\\Acceleration = 0.5 m/s^{2} \\\\Displacement(s) = 25 m$

$v^{2} - u^{2} = 2as$

$v^{2} = 2*0.5*25\\\\v = 5m/s$

$s = ut + 0.5 at^{2}$

$25 = 0.5*0.5*t^{2}$

$t = 10 sec$