Question

A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 12.0 m/s and accelerates at the rate of 0.650 m/s2 for 7.00 s. (a) What is his final velocity (in m/s)?

Answer 1

Answer:

Final speed of the racer, v = 16.55m/s

Explanation:

It is given that,

Initial velocity of the racer, u = 12 m/s

Acceleration, $a=0.65\ m/s^2$

time taken, t = 7 s

We need to find the final velocity of the racer. Let it is given by v. It can be calculated using first equation of motion as :

$v=u+at$

$v=12+0.65\times 7$

v = 16.55 m/s

So, the final speed of the racer is 16.55 m/s. Hence, this is the required solution.