hello, can someone help with #17. step by step, im kinda
confused
A. increases constantly. B. decreases constantly. C. is constant. D. depends on work into the system. E. depends on work out of the system A spring-loaded gun shoots a 12 g plastic ball with a speed of 3 m/s when its spring is compressed by 10 cm. What is the spring constant 17. A. 6 N/m B. 22 N/m C. 110 N/m 2 None of the above E. 18. A 200-kg roller-coaster car is moving at 20 m/s along a straight horizontal track. What will its speed be after climbing the 15-m hill shown in the figure if friction is ignored? v 20 m/s
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