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A toy cannon uses a spring to project a 5.20-g soft rubber ball. The spring is...

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Physics

A toy cannon uses a spring to project a 5.20-g soft rubber ball.The spring is originally compressed by 5.03 cm and has a forceconstant of 8.08 N/m. When the cannon is fired, the ball moves 15.6cm through the horizontal barrel of the cannon, and the barrelexerts a constant friction force of 0.032 1 N on the ball.

(a) With what speed does the projectile leave the barrel of thecannon?

(b) At what point does the ball have maximum speed?

(c) What is this maximum speed?

Answer & Explanation Solved by verified expert
4.3 Ratings (534 Votes)
Part A Using Energy conservation KEi PEi Wf KEf PEf KEi 0 PEf 0 PEi 12kx2 where k 808 Nm x 503 cm 00503 m KEf 12mV2 where m mass of ball 520 gm 520103 kg V Speed of ball when it leaves the cannon Wf Ffd Ff    See Answer
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