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Displacements is related with timet in t...

Displacements is related with timet in the equation `s = 5t^(2) + 4t + 3`. The acceleration is equal to

A

10 units

B

5 units

C

4 units

D

3 units

Text Solution

Verified by Experts

The correct Answer is:
A
If s = displaement, `(ds)/(d t)` = velocity
`(d^(2)s)/(d t^(2))` = acceleration
`s = 5t^(2) + 4t + 3`
`(ds)/(d t) = 10 t + 4 rArr (d^(2)s)/(d t^(2)) = 10` units
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