Question

A cyclist starts at rest and accelerates at 0.5 m/s2 south for 20 s. What is the cyclist’s final velocity

Answer 1

The cyclist's final velocity is 10 m/s.

From the question,

We are to determine the cyclist's final velocity.

Linear motion

From one of the equations of motion for linear motion, we have

$v=u+at$

Where

v is the final velocity

u is the initial velocity

a is the acceleration

and t is the time

From the given information,

The cyclist starts at rest, this means the initial velocity is 0 m/s

That is,

u = 0 m/s

Also

a = 0.5 m/s²

and t = 20 s

Putting the parameters into the equation, we get

$v = 0 + 0.5 \times 20$

$v = 0 + 10$

$v = 10 \ m/s$

Hence, the cyclist's final velocity is 10 m/s.

Learn more on linear motion here: brainly.com/question/19365526