A car starts from rest with acceleration 1m/squared?

Question

what is its speed after 10s

what is its distance after 10s

what is its speed when it has traveled 100m

Answer 1

Vf=final velociy
Vi=initial velociy
a=acceleration
t=change in time
d=distance

Vf=Vi + a * (t)
Vf=0 + 1 * (10)
Vf= 10 m/s

d = Vi * (t) + 1/2 * (a) * (t^2)
d = 0 + .5 * (100)
d = 50 meters

Vf^2 = Vi^2 + 2 * (a) * (d)
Vf^2 = 0 + 2 * (1) * (100)
Vf^2 = 200
Vf = 14.1 m/s

Answer 2

Use your kinematics equations:

vf = v0 + a t
x = x0 + v0 t + 1/2 a t^2
vf^2 = 2 a x - v0^2