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When throwing a baseball, a force is exerted by the hand on the ball.
a. Is this force a contact force or a field force? Contact Force
b. Throwing a ball 6 m straight upwards needs a 25 N throwing force. How strong is the throwing force it experiences when the ball is half way to the top? At the very top? Half way back downwards?
Since throwing is a contact force, once the ball is not in contact with the hand there is no more force. hence, the answer to all is 0 N
The turning movement of a particle about the axis of rotation is called the angular momentum of the particle and is measured as the product of the linear momentum and the perpendic
TA=300 TB=400 rA= rA=6.3(10)^12
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why phase is defined only for periodic motion ?
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