A 012-Kg Block Is Held in Place Against the Spring by by a 35-N

question 53

Multiple Choice

A 0.12-kg block is held in place against the spring by a 35-N horizontal external force.The external force is removed,and the block is projected with a velocity v₁=1.2 m/s. When it separates from the spring,as shown in the figure.The block descends a ramp and has a velocity v2=1.4 m/s. At the bottom of the ramp.The track is frictionless between points A and B.The block enters a rough section at B,extending to E.The coefficient of kinetic friction between the block and the rough surface is 0.26.The block moves on to D,where it stops.By how many centimeters was the spring initially compressed?

• A)0.49 cm
• B)0.26 cm
• C)0.18 cm
• D)0.99 cm
• E)0.67 cm

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Definitions:

Ketone

An organic compound characterized by a carbonyl group bonded to two carbon atoms.

Organic Product

A compound containing carbon atoms that has been formed as the result of a chemical reaction involving organic molecules.

Upper Quartile

The value above which 25% of the data or population falls, marking the upper boundary of the central 50% in a distribution.

Ages of Jockeys

Refers to the distribution or range of years that professional riders of horses in races fall into.