Period: Date: Kinematics Problems 2: Freefall 1. A rock is dropped from rest from the top of a 50 meter cliff. a) How fast is the rock going after 3 seconds? b) How long does it take the rock to reach the ground? c) How fast is it going the instant before it hits the ground? d) What is the object's acceleration the instant before it hits the ground? of a 75 meter tall building. When
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We can use the equation for freefall: h = (1/2)gt^2 where h is the height of the cliff (50 meters), g is the acceleration due to gravity (approximately 9.8 m/s^2), and t is the time. Plugging in the values, we have: 50 = (1/2)(9.8)t^2 Simplifying, we Show more…
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