Question

Chapter - Kinematics

In the figure. 2.36, find the change in velocity at t = 5 seconds. Given a is in m s^-2 and t is in s.

​

Answer 1

$answer$Area of a-t graph gives you the Velocity.

Area =25m/s

So Velocity =25m/s..

Answer 2

Answer:

This is a - t graph.

Here, we find that the acceleration is not constant, and we cannot use the equation

v = u + at

Therefore, change in velocity = Area under the a - t curve.

= 1/2 × 5 × 10

= 25 m s^-1.