Question

How to apply third equation of motion to find s
V = 0m/s
U = 20m/s
a = -8m/s²
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Answer 1

Answer:

s= 25

Explanation:

s = ut + (1/2) at² and v² = u² + 2as 

s = 20×t + (1/2)-8×t^2

or

0= 400 + (-16)s

0 = 400 -16s

-400 = - 16 s

s = -400/-16

s = 25

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Answer 2

Answer:

s = ut + (1/2) * a * t ^ 2 and v ^ 2 = u ^ 2 + 2as

s = 20xt+ (1/2)-8xt^2

or

O = 400 + (- 16) * s

0 = 400 -16s -400 = - 16 s

s = - 400/- 16

s = 25

Explanation:

hope it helps.

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