A soccer ball of mass 0.420 kg is travelling with a speed of 4.50 ms at an angle of 20.0° counter clockwise from the +x-axis. What is the ball's x- and y-component of the momentum?
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Expert's answer
2012-03-01T09:25:43-0500
The momentum of a soccer ball is P = MV, where V is velocity component along the x axis & y axis. So momentum along x axis is Px = 4.5 * cos20 * 0.42 ≈ 1.7760 kg*m/s & momentum along y axis is Py = 4.5 * sin20 * 0.42 ≈ 0.6464 kg*m/s.
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