A ball is thrown upwards and returns to the same location. when it turns, how much is the speed compared with the initial speed?
Question: A ball is thrown upwards and returns to the same location. when it turns, how much is the speed compared with the initial speed?
When a ball is thrown upwards and returns to the same location, its speed when it returns will be equal to its initial speed, but in the opposite direction.
Assuming there is no significant air resistance, the ball's speed gradually decreases as it moves upward due to the force of gravity acting against it. At the highest point of its trajectory, its speed becomes zero momentarily. Then, as the ball falls back down, it gains speed due to the acceleration from gravity.
When the ball reaches its starting point, its speed will be the same as the initial speed, but in the opposite direction. This is because the force of gravity acts to accelerate the ball downward, reversing its initial upward velocity.
Therefore, the speed of the ball when it returns to the same location is equal in magnitude but opposite in direction to its initial speed.
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