A toy cannon uses a spring to project a 5.38-g soft rubber ball. The spring is...

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Physics

A toy cannon uses a spring to project a 5.38-g soft rubber ball.The spring is originally compressed by 4.91 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 6 N on the ball.

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

(b) At what point does the ball have maximum speed? cm (from itsoriginal position)

(c) What is this maximum speed? m/s

Answer & Explanation Solved by verified expert
3.6 Ratings (687 Votes)
Part A Using Energy conservation KEi PEi Wf KEf PEf KEi 0 PEf 0 PEi 12kx2 where k 808 Nm x 491 cm 00491 m KEf 12mV2 where m mass of ball 538 gm 538103 kg V Speed of ball when it leaves the cannon Wf    See Answer
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