A major-league catcher gloves a 92 rm mirm h pitch and, Ask an Expert

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Q. A major-league catcher gloves a 92 {rm mi}/{rm h} pitch and brings it to rest in 0.15 {rm m}.If the force exerted by the catcher is 803 {rm N}, what is the mass of the ball?

Q. A 6.0 kg box moving at 5.0 m/s on a horizontal, frictionless surface runs into a light spring of force constant 90 N/cm.

Use the work-energy theorem to find the maximum compression of the spring.

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