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mildredelizam
12.07.2019 •
Physics
After falling from rest at a height of 32.3 m, a 0.556 kg ball rebounds upward, reaching a height of 22.1 m. if the contact between ball and ground lasted 1.62 ms, what average force was exerted on the ball?
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Ответ:
F = 15771.6 N
Explanation:
Initial velocity of ball just before it will collide is given as
now for final speed of rebound we have
now the average force is given as
Ответ:
The two pink or Rose colored ones are parallelograms
Step-by-step explanation:
They both have lines that are one pair of parallel lines to each other