A stone is thrown with an initial speed of 15 m/s at an angle of 53° above the horizontal from the top of a 40-m building.If g = 9.8 m/s2 and air resistance is negligible,what is the magnitude of the horizontal displacement of the rock?
A) 30 m
B) 39 m
C) 66 m
D) 90 m
Correct Answer:
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