Question

11.
Distance S travelled by a body is given by 2S=(10t+5t^2)m. The acceleration of the body is
(A) 2.5 m/s2
(B) 5 m/s2
(C) 10 m/s2
(D) 0.5 m/s2​

Answer 1

Answer:

(B)

Explanation:

As its given that:

2s=10t + 5t^2

divide both sides by 2.

thus, s= 5t + 2.5t^2

now double differetiate the above equation.

thus, s"= 5 m/s^2