Question

a) A spring with a force constant of 167 N/m is compressed 1.0cm. Calculate the work...

a) A spring with a force constant of 167 N/m is compressed 1.0cm. Calculate the work done on the spring.
b) A 20.0kg curling stone travels 30.0m along the ice surface that applies a frictional force of 10.0N in magnitude. Calculate the thermal energy produced.
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Answer #1

SOLUTION:

spring with a force constant of 167 N/m =K

x= compressed 1.0 cm = 0.01 m

W= he work done on the spring.

we know that

The work done on the spring. = 8.35*10-3 J

B) Mass of curling stone = 20 kg

displacement = 30 m =d

   = Applied fractional force

lets  the thermal energy produced = E

We know that  

the thermal energy produced is = 300 J

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