2)
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)
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?
Answer:
0.0312J
Explanation:
Let x be the distance the staple moves:
[tex]x=0.150m-0.115m=0.035m[/tex]
And spring constant is [tex]k=51.0N/m[/tex]
[tex]PE=0.5kx^2\\=0.5\times 51.0\times 0.035^2\\\\=0.312[/tex]
Hence, the potential energy is 0.0312J