Answer with Explanation:
We are given that
Mass of person,M=80 kg
Radius,r=3.5 m
Moment of inertia of merry,I=
Angular velocity of platform=
1.Law of conservation of angular momentum

Where
Substitute the values


Angular velocity when the person reaches the edge =0.418 rad/s
2.Rotational kinetic energy of the system before the person's walk

3.Rotational kinetic energy of the system after the person's walk


Explanation:
Levitt and Dubner’s argument effectively uses logical, concrete evidence to arrive at conclusions about morality and cheating practices.the realities they present about sumo and the bagel business Their utilization of factual evidence in various illustrations shows morality and cheating practices are more common in high incentive situations where telling lies or an act of fooling people was rewarded awesomely. They use statistical evidence and different examples support the fact that Levitt and Dubner have arrived at a generalisation on moral grounds.
Answer:
B, the car travels around a circular track at 30 m.
Explanation:
75 kg/m/s^2. Momentum = mass x velocity
Answer:
Normal Force, Applied force, Gravitational Force, Spring Force
Explanation:
Normal Force so that he does not fall into trampoline, spring because the trampoline spring down when the force goes down, then up putting force upwards, gravitation because of gravity, and applied because of jumping