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Q.

For a body travelling with uniform acceleration, its final velocity is , where x is the distance travelled by the body. Then the acceleration is

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a

-8 m/s2

b

-3.5 m/s2

c

-7 m/s2

d

180 m/s2

answer is B.

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Detailed Solution

v2 = 180 - 7x ⇔ v2 = u2 + 2as 2a = -7 ⇒ a = -3.5m/s2
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