Explanation:
Given that,
The initial velocity of a skater is, u = 5 m/s
She slows to a velocity of 2 m/s over a distance of 20 m.
We can find the acceleration of skater. It is equal to the rate of change of velocity. So, it can be calculated using third equation of motion as follows :
a = acceleration
So, her acceleration is 
and she is deaccelerating. Also, her initial velocity is given i.e. 5 m/s.
The total work is
(mass of the elevator, kg) x (9.8 m/s²) x (9.0 m) Joules .
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Answer:
A. Capitalist economy
Explanation:
The United States is a capitalist economy. Hope this helps, thank you !!
