Question

The acceleration a of an object at time t is given by a = 2t. If initial velocity of the object is 2 m/s, then find
its velocity after 5 s.​

Answer 1

Answer:

52 m/s

Explanation:

At t=5s,

a=2t=2×5=10m/s²

u=2 m/s

v=u+at = 2+10×5=52 m/s

Answer 2

Explanation:

as dv/dt=a

substitute the value of a in the equation

a=2t

and bring the dt to the RHS and integrate both sides