How many revolutions baseball makes on way to home plate
A good baseball pitcher can throw a baseball toward home plate at 98 mi/h with a spin of 1590 rev/min. How many revolutions does the baseball make on its way to home plate? For simplicity, assume that the 60 ft path is a straight line.
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A loudspeaker of mass 22.0 kg is suspended a distance of h = 2.20 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10 m. What is the tension in each of the cables?
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How many revolutions does the baseball make on its way to home plate? For simplicity, assume that the 60 ft path is a straight line.
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A 340-kg sailboat has an acceleration of 0.76 m/s2 at an angle of 63° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
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