Matter & Interactions 2nd ed. Practice Problems
Aaron Titus | High Point University
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(N)=# of solutions
1310001     The net force on a dart in a spring-loaded dart gun.     1310001
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Question

 

A spring-loaded dart gun is used to shoot a 5-gram dart straight upward. Its spring has a stiffness 50 N/m, and its relaxed length is 5.0 cm. The spring is compressed 4.0 cm from its relaxed length.

  1. What is the net force on the dart at the instant the spring is released?
  2. What is the net force on the dart at the instant the dart leaves the spring? At this instant, the spring has returned to its relaxed length.