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26. A toy cannon uses a spring to project a 5.34 g soft rubber ball. The spring...

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Physics

26.

A toy cannon uses a spring to project a 5.34 g soft rubber ball.The spring is originally compressed by 5.08 cm and has a forceconstant of 8.09 N/m. When the cannon is fired, the ball moves 15.1cm through the horizontal barrel of the cannon, and there is aconstant frictional force of 0.0318 N between the barrel and theball.

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

Answer & Explanation Solved by verified expert
4.2 Ratings (519 Votes)
Part A Using Energy conservation KEi PEi Wf KEf PEf KEi 0 PEf 0 PEi 12kx2 where k 809 Nm x 508 cm 00508 m KEf 12mV2 where m mass of ball 534 gm 534103 kg V Speed of ball when it leaves the cannon Wf Ffd Ff Force of    See Answer
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