A 50-Kg Toboggan Is Coasting on Level Snow

question 52

Multiple Choice

A 50-kg toboggan is coasting on level snow. As it passes beneath a bridge, a 20-kg parcel is dropped straight down and lands in the toboggan. If KE₁ is the original kinetic energy of the toboggan and KE₂ is the kinetic energy after the parcel has been added, what is the ratio KE₂/KE₁.

• A)0.4
• B)0.6
• C)0.7
• D)0.8
• E)1

---

Definitions:

Semantics

The branch of linguistics concerned with meaning, including the meanings of words, phrases, and sentences.

Morphemes

are the smallest grammatical units in a language that carry meaning, such as prefixes, roots, and suffixes.

Syntax

The set of rules, principles, and processes that govern the structure of sentences in a given language, including word order.

Grammatical Sentences

Constructions that follow the rules set by the grammar of a particular language, allowing for meaningful and structured communication.