How do basketball players jump straight up into the air Your explanation should include an interaction diagram and a free-body diagram.
The upward normal force owing to the floor, the downward normal force due to gravity, and the downward normal force due to the ball.
The player pushes down on the floor.
which in turn pushes him back up.
Because the force of his push is higher than the force of gravity.
The player accelerates upward.
You find yourself in the middle of a frozen lake with a surface so slippery you cannot walk. However, you happen to have several rocks in your pocket. The ice is extremely hard. It cannot be chipped, and the rocks slip on it just as much as your feet do. Can you think of a way to get to shoreUse pictures, forces, and Newton's laws to explain your reasoning.
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