Question

# A body moves with initial velocity $$10ms^{-1}$$. If it covers a distance of $$20m$$ in $$2s$$, then acceleration of the body is

A
Zero
B
10ms2
C
5ms2
D
2ms2

Solution

## The correct option is A ZeroSuppose the acceleration is $$a$$ then using the second equation of motion, $$s=ut+\dfrac{1}{2}at^2$$and putting $$t=2sec$$ and $$u=10m/s$$ we get $$20=10\times 2+a\times 2$$or $$a=0$$ that is $$uniform$$ motion.Physics

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