Question

A bus is moving with an initial velocity 10m/s.After 2 seconds,the velocity becomes 20m/s.find the acceleration and distance taken by the bus.

Answer 1

Answer:

In the question,

Initial velocity = 10 m/s

Final velocity = 20 m/s

time taken = 2 s

Using the equations of motions:

= > v = u + at

= > 20 = 10 + 2a

= > 10 = 2a

= > 5 = a

Acceleration of the bus is 5 m/s^2

= > v^2 = u^2 + 2aS

= > 20^2 = 10^2 + 2(5)S

= > 400 = 100 + 10S

= > 400 - 100 = 10S

= > 300 = 10S

= > 30 = S

Henceforth, distance covered by the bus is 30 m.