A Block Slides Down a Frictionless Inclined Ramp $20.0 \mathrm {~m}$

A block slides down a frictionless inclined ramp.If the ramp angle is 17.0° above the horizontal and the length of the surface of the ramp is $20.0 \mathrm {~m}$ find the speed of the block as it reaches the bottom of the ramp,assuming it started sliding from rest at the top.Also assume no air resistance.

A) 10.7 m/s
B) 114 m/s
C) 7.57 m/s
D) 19.6 m/s

Correct Answer:

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