An Object Approaches the Bottom of a Ramp, Point A It

Multiple Choice

An object approaches the bottom of a ramp, point A. It goes up the ramp and turns around at point B, which is 40.0 m above A. The ramp makes an angle of 30.0° with the horizontal. What is the speed of the object at point A? Neglect friction and use g = 10.0 m/s².

A) 23.8 m/s
B) 28.3 m/s
C) 10.0 m/s
D) 11.6 m/s
E) 15.3 m/s