Question

A motorcyclist changes the velocity of his bike from 20.0 meters/second to 35.0 meters/second under a constant acceleration of 4.00 meters/second2. How long does it take the bike to reach the final velocity?
A.
2.02 seconds
B.
–2.02 seconds
C.
3.75 seconds
D.
–3.75 seconds

Answer 1

The time needed by the bike to reach the final velocity is 3 .75 seconds ,Option C is the write answer.

What is Velocity ?

It is defined as the distance covered by an object in a given amount of time. It is a vector quantity , its unit is m/s , km/hr etc.

It is given in the question that

Initial Velocity = 20m/s

Final Velocity = 35m/s

Acceleration = 4m/sq.s

Time = ?

The equation of motion

v = u +at will be used

35 = 20 + 4 * t

15 = 4* t

t = 3.75 seconds

Therefore the time needed by the bike  to reach the final velocity is 3 .75 seconds.

To know more about Velocity

brainly.com/question/18084516

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