In an Elastic Collision Between Two Bodies of Mass M1

question 18

Multiple Choice

In an elastic collision between two bodies of mass m1 and m², with m² initially at rest, mass 1 moves off at angle θ relative to the direction of its initial velocity and mass 2 at angle φ. An exam paper shows the equations below: m1v1i
0
= m1v1f cosθ + m²v2f sinφ
= m1v1f sinθ + m²v2f cosφ
What error(s) has the student made?

• A)In the first equation, m²v2f sinφ should be m²v2f cosφ.
• B)In the second equation, m²v2f cosφ should be m²v2f sinφ.
• C)In the second equation, the plus sign between the terms on the right should be a minus sign.
• D)All of the errors listed above.
• E)Only errors (a) and (b) above.

---

Definitions:

Accounts Receivable Turnover

A financial ratio that measures how often a company collects its average accounts receivable balance over a period.

Inventory Turnover

A metric that measures how many times a company's inventory is sold and replaced over a specified period.

Total Current Assets

The sum of all assets that are expected to be converted into cash, sold, or consumed within one year or one business cycle, whichever is longer.

Common Stock

A type of security representing ownership in a corporation, giving holders a share of the company’s profits via dividends.