If you throw a ball up with a velocity of 7 m/s, how long will it take for the ball to reach
1 answer:
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Answer:
Explanation:
Let assume that floor is horizontal. By definition, the force of friction is less or equal to the maximum static friction force. That is to say:
The maximum friction force is:
By applying Newton's law, the box has the following physical model:
Where:
Real friction is equal to 50 N, which is less than maximum friction force. Therefore, the static friction on the box is: