Question

Starting from a stationary position rahul paddles his bicycle to attain velocity of 5m/s in 20s calculate the acceleration of the bicycle in this case

Answer 1

Answer:

0.25 m/s²

Explanation:

Given :

• Initial velocity = u = 0 m/s

• Final velocity = v = 5 m/s

• Time taken = t = 20 seconds

To find :

• Acceleration of the bicycle

Acceleration = (final velocity - Initial velocity) / time

Acceleration = (5-0)/20

Acceleration = 5/20

Acceleration = 1/4

Acceleration = 0.25 m/s²

The acceleration of the bicycle is equal to 0.25 m/s²

Extra:

• First equation of motion = v=u+at

• Second equation of motion = s=ut+½×at²

• Third equation of motion = v²-u²=2as

Answer 2

Given:-

• Initial velocity (u) = 0m/s

• Final velocity (v) = 5m/s

• Time taken (t) = 20s

To Find:-

• Acceleration (a)

Solution :-

By using 1st equation of motion

➦ v = u +at

➭ 5 = 0+ a× 20

➭ 5 = 20×a

➭ a = 5/20

➭ a = 0.25m/s²

∴The acceleration is 0.25m/s²