Question

a car accelerates from rest at constant rate for a second and cover a distance x the distance covered by it in next second will be

Answer 1

S=ut +1/2at2

it is the motion equation

as car is at rest ,means u=0

s=1/2(at2)

x=1/2(a) {t=1}............................................................[eq 1]

new distance=1/2at2

=1/2a4 {t=4}

=4x ....................................{putting eq 1}