An-object-undergoes-constant-acceleration-after-starting-from-rest-and-then-travels-5m-in-the-first-second-Determine-how-far-it-will-go-in-the-next-second-a-15m-b-10m-c-20m-d-5m-

Question Number 29463 by NECx last updated on 09/Feb/18

A n o b j e c t u n d e r g o e s c o n s t a n t

a c c e l e r a t i o n a f t e r s t a r t i n g f r o m

r e s t a n d t h e n t r a v e l s 5 m i n t h e

f i r s t s e c o n d . D e t e r m i n e h o w f a r

i t w i l l g o i n t h e n e x t s e c o n d .

a) 1 5 m b) 10 m c) 20 m d) 5 m

Answered by mrW2 last updated on 09/Feb/18

s = \frac{1}{2} {a t}^{2}

s_{1} = \frac{1}{2} a \times 1^{2} = 5 m

\Rightarrow a = 10

s_{2} = \frac{1}{2} \times 10 \times 2^{2} = 20 m

Δ s_{2 - 1} = 20 - 5 = 15 m

\Rightarrow a n s w e r a) i s c o r r e c t .

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