Question

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Question 12.
A body starts from rest. If it travels with an
acceleration of 2 m/s2, its displacement at the
end of 3 seconds is
(a) 9 m
(b) 12 m
(c) 16 m
(d) 10 m​

Answer 1

Answer:

Plz chech your answer

Explanation:

I guess its 12m

Answer 2

Answer:

If a body starts from rest and travels 120 m in the 8 ^th second, assuming acceleration is constant during its journey, then its value is:

explanation

Sn^th = u + a2(2n - 1) 120 = S8^th = 0 + a2(2 × 8 - 1) a = 24015 = 805 = 16 m/s^2