A ball is thrown horizontally from the top of a cliff with a speed of 40 m/s. It hits the ground in 2 seconds. What is the distance from the cliff to the point at which the ball hits the ground?
Correct answer: C. 80 m
- A. 20 m
- B. 40 m
- C. 80 m
- D. 19.6 m
Explanation
When analyzing motion in two dimensions, it's crucial to separate the horizontal and vertical components. In this scenario, the ball is thrown horizontally with a speed of 40 m/s and hits the ground in 2 seconds. The horizontal distance traveled by the ball can be determined using:Horizontal distance = horizontal speed × timeSubstitute the values: 40 m/s × 2 s = 80 mTherefore, the distance from the cliff to the point where the ball hits the ground is 80 meters. Options A, B, and D are incorrect as they do not follow the correct formula and reasoning.
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