Question

HELPPP PLEASE !!!!!!!
A car starts from rest and accelerated uniformly at a rate
of 4.00 m/s2, E and covered a displacement of 200.0 m
a. Calculate the time it takes to cover the displacement
b. Final velocity
c. Average velocity

Answer 1

Explanation:

a) d = ½.a.t²

200 = ½(4)t²

200 = 2t²

t² = 200/2

t² = 100

t =√100 = 10 s

b) Vt = a. t

= 4(10)

= 40 m/s

c) V av. = d/t = 200/10 = 20m/s