Work, Energy, Power, and Simple Machines
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Free Physics Q & A Practice
1 of 5 free exam-style exercises in this topic
A 2.0 kg object slides from rest down a frictionless track through a vertical height of 5.0 m. Take g = 10 m s⁻². What speed does it reach?
Initial energy
Final energy
mgh
½mv²
Select one option.
A
5.0 m s⁻¹
B
7.1 m s⁻¹
C
14 m s⁻¹
D
50 m s⁻¹
E
10 m s⁻¹
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