Question

.
The displacement of a body at any time 'ť after starting is given by S = 5t + 2tsqaure-. Find
its acceleration?
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Answer 1

Explanation:

S =5t + 2t^2

v =d/dx(s)

=d/dx (5t+2t^2)

=5+4t

a=d/dx(v)

=d/dx(5+4t)

=4

Hence acceleration is 4 rad/sec.

Answer 2

Answer: 4 m/s^2

Explanation:

S=5t+2t^2

v=ds/dt

v=5+4t

a=dv/dt

a=4 m/s^2