Explanation:
Work cannot be increased by using a machine of some kind.
Answer:

Explanation:
We have to use the centripetal force equation

we need the radious so we have to isolate "r" and we get

replacing m=65 kg, v= 4.1 m/s and Fc=455N we get


The radius of the amusement park chamber is 2.4m
Could be easy for some people and hard for some people.
Answer:
airplane
Explanation:
as greater mass greater inertia