27.5k views
5 votes
A motorcyclist increases the velocity of his bike from 30.0 meters/second to 55.0 meter/second under a constant acceleration of 5.00 meters/second^2. How long does it take the bike to reach the final velocity?

1 Answer

6 votes

Answer:

Time, t = 5 seconds.

Step-by-step explanation:

Given the following data;

Initial velocity = 30m/s

Final velocity = 55m/s

Acceleration = 5m/s²

To find the time, we would use the first equation of motion;


V = U + at

Where;

  • V is the final velocity.
  • U is the initial velocity.
  • a is the acceleration.
  • t is the time measured in seconds.

Making time, t the subject of formula, we have;


t = (V - U)/(a)

Substituting into the equation, we have;


t = (55-30)/(5)


t = (25)/(5)

Time, t = 5 seconds.

Therefore, it would take the bike 5 seconds to reach the final velocity.

User Kim Berg Hansen
by
6.4k points