A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. What is her acceleration? Is the acceleration higher of another cyclist who accelerates from 0 to 30 m/s in 8 seconds? How do you know?

Acceleration of one cyclist=

Yes, the acceleration is higher of another cyclist who accelerates from 0 to 30 m/s in 8 seconds.

Explanation:

We are given that

Initial velocity of one cyclist, u=0 m/s

Final velocity of one cyclist, v=8m/s

Time, t=3 s

Initial velocity of another cyclist, u'=0

Final velocity of another cyclist, v'=30m/s

Time, t'=8 s

We know that

Acceleration,

Using the formula

Acceleration of one cyclist=

Acceleration of another cyclist, a'=

Acceleration of another cyclist, a'=

Yes, the acceleration of another cyclist is higher than the cyclist which accelerates from 0m/s to 8m/s.

the device is called “ rocket engine”

because if the tool that you are using is not balanced it there would be false mass.