The spring in a retractable ballpoint pen is 1.8 cm long, with a 300 n/m spring constant. when the pen is retracted, the spring is compressed by 1.0 mm. when you click the button to extend the pen, you compress the spring by an additional 6.0 mm. how much energy is required to extend the pen?

The energy required to extend the pen is 7.2 mJ.

Explanation:

Given that,

Length = 1.8 cm

Spring constant = 300 N/m

Spring is compressed = 1.0 mm

Again, Compressed = 6.0 mm

Total compressed = 1.0+6.0 = 7.0 mm

We need to calculate the required energy

The energy required is equal to the change in spring potential energy

Put the value into the formula

Hence, The energy required to extend the pen is 7.2 mJ.

b

explanation:

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