A toy cannon uses a spring tp project a 5.3 g soft rubber ball. The spring is originally compressed by 5 cm and has a force constant 8N/m .When the cannon is fired , the ball moves 15cm through the horizontal barrel of the cannon ,and there is a constant friction force of 0.032 N . between the barrel and the ball.At what point does the ball have maximum speed ? What is this maximum speed?(adsbygoogle = window.adsbygoogle || []).push({});

The Point the ball attain the Max speed is 4.6 cm after release

The Max Speed is 1.79m/s

Can anyone show me the step to obtain the answer ?THX

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# Energy problem on toy cannon

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