Elastic Collisions in Two Dimensions: a Pool Player Is Attempting

question 40

Multiple Choice

Elastic collisions in two dimensions: A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s and directs its center on a path tangent to the surface of the target ball having the same mass as the cue ball. After the collision (on a frictionless table) the initially-stationary ball moves with a speed of 4.82 m/s. After the collision, the new speed of the cue ball and the relative direction of the balls are closest to

• A) 2.79 m/s, at 90° to each other.
• B) 2.79 m/s, at 60° to each other.
• C) 8.34 m/s, at 90° to each other.
• D) 8.34 m/s, at 60° to each other.

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Sold Bonds

The act of a company or government issuing bonds to investors in exchange for capital, representing a long-term borrowing.

Common Stock

A type of security that represents ownership in a corporation, with holders entitled to vote on corporate matters and receive dividends.

Journal Entries

Records of financial transactions in the accounting system, marked by debits and credits to maintain the balance of accounts.

Stock Securities

Equities or shares in corporations, representing a fraction of ownership in the company; these can provide dividends and potential appreciation in value to its holders.