If a body starts from rest and travels 120cm in the 6th second , with constant acceleration then what is the acceleration
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Answer:
0.218 ms⁻²
Explanation:
If a body starts from rest and moves with constant acceleration, then the distance travelled by it in nᵗʰ second is given by:
Sₙ = a/2 (2n-1)
∴ 1.2 = a/2 ( 2×6-1 ) [∵120cm = 1.2m]
∴ 1.2 = a/2 (11)
∴ a/2 (11) = 1.2
∴ a/2 = 1.2/11
∴ a/2 = 0.109
∴ a = 0.109 × 2
∴ a = 0.218 ms⁻²
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