A body initially at rest travels a distance of $100 m$ in $5 s$ with a constant acceleration. Find the acceleration.

2 m s^{- 2}

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4 m s^{- 2}

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6 m s^{- 2}

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8 m s^{- 2}

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Solution

The correct option is D $8 m s^{- 2}$
Given,
$u = 0$
$s = 100 m$
$t = 5 s$

Let, acceleration $= a$
$∴ s = u t + \frac{1}{2} a t^{2}$
$100 = (0 \times 5) + (\frac{1}{2} \times a \times 5^{2})$
$a = 8 m s^{- 2}$

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A body initially at rest travels a distance of 100m in 5s with a constant acceleration. Find the acceleration.

The correct option is D 8ms−2Given,u=0s=100mt=5sLet, acceleration =a∴s=ut+12at2100=(0×5)+(12×a×52)a=8ms−2

A body initially at rest travels a distance of $100 m$ in $5 s$ with a constant acceleration. Find the acceleration.

The correct option is D $8 m s^{- 2}$
Given,
$u = 0$
$s = 100 m$
$t = 5 s$

Let, acceleration $= a$
$∴ s = u t + \frac{1}{2} a t^{2}$
$100 = (0 \times 5) + (\frac{1}{2} \times a \times 5^{2})$
$a = 8 m s^{- 2}$