The speed of the roller coater at the bottom of the hill is 31 m/s.
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Speed of the roller coater at the bottom of the hill</h3>
Apply the principle of conservation of mechanical energy as follows;
K.E(bottom) = P.E(top)
¹/₂mv² = mgh
v² = 2gh
v = √2gh
where;
- v is the speed of the coater at bottom hill
- h is the height of the hill
- g is acceleration due to gravity
v = √(2 x 9.8 x 49)
v = 31 m/s
Thus, the speed of the roller coater at the bottom of the hill is 31 m/s.
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weathering occurs when rocks sit in a pool of saltw ater.
Explanation:
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Answer:
A- Greatest Kinetic Energy
B- Increasing Potential Energy
C- Increasing Kinetic Energy
D- Greatest Potential Energy
Explanation:
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