1. The staples inside a stapler are kept in place by a spring with a relaxed length of 0.115 m. If the spring constant is 51.0 N/m, how much elastic potential energy is stored in the spring when its length is 0.150 m?
1. The staples inside a stapler are kept in place by a spring with a relaxed length of 0.115 m. If the spring constant is 51.0 N/m, how much elastic potential energy is stored in the spring when its length is 0.150 m?
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Transcribed Image Text:Activity 1-Potential Energy
Solve the following problems with complete solutions.
1. The staples inside a stapler are kept in place by a spring with a relaxed
length of 0.115 m. If the spring constant is 51.0 N/m, how much elastic
potential energy is stored in the spring when its length is 0.150 m?
2. A 40.0 kg child is in a swing that is attached to ropes 2.00 m long. Find
the gravitational potential energy associated with the child relative to
the child's lowest position under the following conditions:
a. when the ropes are horizontal
b. when the ropes make a 30.0° angle with the vertical
c. at the bottom of the circular arc
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