A rock is thrown at a window that is located 18.0 m above the ground. The rock is thrown at an angle of 40.0° above horizontal. The rock is released from a height of 2.00 m above the ground with a speed of 30.0 m/s. If the rock strikes the window on its upward trajectory, from what horizontal distance from the window was it released?
A)53.2 m
B)48.7 m
C)71.6 m
D)29.8 m
E)27.3 m

Question

Quizplus · Accepted Answer

The vertical motion can be analyzed to find the time it takes for the rock to reach the window's height. Using this time, the horizontal distance can be calculated.

A Rock Is Thrown at a Window That Is Located