Kepler's____ of planetary motion states that the planets have an elliptical orbit, with the Sun at one focal point of the ellips
2 answers:
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Answer:
25 N
Explanation:
Work is a product of force and perpendicular distance moved.
W=Fd where F is force exerted and d is perpendicular distance.
However, for this case, the distance is inclined hence resolving it to perpendicular so that it be along x-axis we have distance as
Therefore,
Making F the subject of the formula then
where
is the angle of inclination. Substituting 190 J for W then 18 degrees for
and 8 m for d then
22.5 J
Explanation:
Given:
x = 3 m
The spring potential energy is