A 046-Kg Block Is Held in Place Against the Spring by by a 30-N

question 151

Multiple Choice

A 0.46-kg block is held in place against the spring by a 30-N horizontal external force.The external force is removed,and the block is projected with a velocity $v 1 = 1.2 \mathrm {~m} / \mathrm { s }$ upon separation from the spring,as shown in the figure.The block descends a ramp and has a velocity $v _ { 2 } = 1.5 \mathrm {~m} / \mathrm { s }$ at the bottom.The track is frictionless between points A and B.The block enters a rough section at point B,extending to E.The coefficient of kinetic friction between the block and the rough surface is 0.38.The velocity of the block is $v _ { 3 } = 1.4 \mathrm {~m} / \mathrm { s }$ at point C.The block moves on to D,where it stops.What distance does the block travel between points B and D?

• A)0.30 m
• B)0.039 m
• C)0.26 m
• D)0.40 m
• E)0.60 m

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Definitions:

Wintergreen

A plant or flavor often characterized by a refreshing, minty taste, derived from certain plants or synthetically produced.

Odors

Smells or scents, which are sensory stimuli detected by the olfactory system.

Olfactory Receptor

A type of sensory cell located in the nasal cavity that is responsible for detecting odors and initiating the sense of smell.

Kinesthesia

The faculty for recognizing the position, weight, or movement in the body's muscles, tendons, and joints.