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# 2kg block slides along a horizontal frictionless surface at a speed of 6.5m/s when it runs into a spring with stiffness 2.2N/m that is at its...

A 1.2kg block slides along a horizontal frictionless surface at a speed of

6.5m/s when it runs into a spring with stiffness 2.2N/m that is at its

equilibrium length. Just as it starts to compress the spring, the surface

becomes rough, with a coefficient of kinetic friction equal to 0.3. The

spring brings the block to a full stop, where it remains at rest.

a. Find the amount the spring is compressed.

b. Find the amount of energy converted to thermal.

c. Find the minimum coefficient of static friction of the surface.

a) compression in spring = 3.46 m b) Thermal... View the full answer

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