A person throws two identical stones from the top of a 200-m high cliff overlooking a lake. Stone 1 is thrown at an angle of 30° above the horizontal with an initial speed of 40 m/s. Stone 2 is thrown at an angle of 30° below the horizontal with an initial speed of 40 m/s. Neglect air resistance.
Immediately before they strike the water, which stone has the greater acceleration?
a. Stone 1.
b. Stone 2.
c. They have the same acceleration.
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