An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/ $s^{2}$ west for 3 second. During this time the object travels a distance of :

12 m

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24 m

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36 m

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54 m

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Solution

The correct option is D
54 m

s = ut + $\frac{1}{2}$ a $t^{2}$

Substitute u= 12 $m s^{- 1}$ ,

a= 4 $m s^{- 2}$ and t= 3 second, we get,

s= 54 m

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An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/ s2 west for 3 second. During this time the object travels a distance of :

The correct option is D 54 m s = ut + 12 a t2 Substitute u= 12 ms−1, a= 4 ms−2 and t= 3 second, we get, s= 54 m

An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/ $s^{2}$ west for 3 second. During this time the object travels a distance of :

The correct option is D
54 m

s = ut + $\frac{1}{2}$ a $t^{2}$

Substitute u= 12 $m s^{- 1}$ ,

a= 4 $m s^{- 2}$ and t= 3 second, we get,

s= 54 m