A ball is thrown downward on the 30° inclined plane so that when it rebounds perpendicular to the incline it has a velocity of vA = 40 ft/s. Determine the distance R where it strikes the plane at B.

A ball is thrown downward on the 30° inclined plane so that when it r

1.	A ball is thrown downward on the 30° inclined plane so that when it rebounds perpendicular to the incline it has a velocity of vA = 40 ft/s. Determine the distance R where it strikes the plane at B.
A.	R = 66.3 ft
B.	R = 99.4 ft
C.	R = 172.1 ft
D.	R = 344 ft
Answer» B. R = 99.4 ft

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A ball is thrown downward on the 30° inclined plane so that when it rebounds perpendicular to the incline it has a velocity of vA = 40 ft/s. Determine the distance R where it strikes the plane at B.

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