A body travel according to the law x(t)=2t+3t3 calculate the accelaration of body at t=2s

28m/s

Explanation:

Given law,

⇒ x(t) = 2t + 3t³

Where, t = 2s

Then,

⇒ x(2) = 2(2) + 3(2)³

⇒ 4 + 3(8)

⇒ 4 + 24

⇒ 28 m/s

Acceleration is 28m/s

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: )

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid