An Object of Mass 20

question 22

Multiple Choice

An object of mass 20.0 kg is at rest at the top of an inclined plane whose length is 8.00 m and which makes an angle of 30.0° with the horizontal. The coefficient of kinetic friction between the object and the inclined plane is 0.400. The object is released and slides down the plane. What is the kinetic energy of this object at the bottom of the inclined plane? Use g = 10.0 m/s².

• A) 246 J
• B) 173 J
• C) 600 J
• D) 300 J
• E) 200 J

---

Definitions:

Ethyl Cyclohexyl Ketone

An organic compound featuring a ketone group (C=O) bonded to an ethyl group and a cyclohexyl group.

Cyclohexanecarboxylic Acid

A carboxylic acid that features a cyclohexane ring attached to a carboxyl (-COOH) group.

Organic Product

A naturally occurring material or product derived from living organisms, often referring to compounds containing carbon.

Major Organic

Referring to the primary organic compound formed in the largest quantity in an organic reaction.