A 30-Kg Mass Moving in the Positive X Direction with a a Speed

question 2

Multiple Choice

A 3.0-kg mass moving in the positive x direction with a speed of 10 m/s collides with a 6.0-kg mass initially at rest. After the collision, the speed of the 3.0-kg mass is 8.0 m/s, and its velocity vector makes an angle of 35° with the positive x axis. What is the magnitude of the velocity of the 6.0-kg mass after the collision?

• A) 2.2 m/s
• B) 2.9 m/s
• C) 4.2 m/s
• D) 3.5 m/s
• E) 4.7 m/s

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Definitions:

NPV

Net Present Value, a calculation used to determine the value of an investment by discounting future cash flows to their present value.

Payback Analysis

A financial analysis method used to determine the time required to recoup the cost of an investment or project.

NPV

An evaluation method used to assess the profitability of an investment by calculating the difference between its current cash inflows and outflows, discounted to their present values.

IRR

Internal Rate of Return represents a financial measure for assessing the potential profitability of investments.