A sprinter reaches a velocity of 2 m/s in just 1 second. At a constant rate of acceleration, how long does it take for her to double this velocity? What is her acceleration during this time period? Show you work and explain your answer.

See the answer below

Explanation:

Acceleration is the ratio of velocity and time. Hence;

Acceleration of the sprinter = 2/1 = 2 m/s2.

When the acceleration is constant and the velocity is double:

acceleration = velocity/time

2 = 4/time,

time = 4/2 = 2 s

Hence, the time it will take for the velocity to double with constant acceleration is 2 s. The sprinter's acceleration during this period would be 2 m/s2.

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