2 years ago

HELPPP PLEASE !!!!!!!

Physics

1 answer:

vlabodo [156]2 years ago

6 0

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

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