A 20-N crate starting at rest slides down a rough 5.0-m long ramp,inclined at 25 with the horizontal.20 J of energy is lost to friction.What will be the speed of the crate at the bottom of the incline?
A) 0.98 m/s
B) 1.9 m/s
C) 3.2 m/s
D) 4.7 m/s
Correct Answer:
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