Car a Rear Ends Car B, Which Has Twice the Mass

question 77

Multiple Choice

Car A rear ends Car B, which has twice the mass of A, on an icy road at a speed low enough so that the collision is essentially elastic. Car B is stopped at a light when it is struck. Car A has mass m and speed v before the collision. After the collision

• A) each car has half the momentum.
• B) car A stops and car B has momentum mv.
• C) car A stops and car B has momentum 2mv.
• D) the momentum of car B is four times as great in magnitude as that of car A.
• E) each car has half of the kinetic energy.

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Definitions:

OCF

Operating Cash Flow, which indicates the amount of cash generated by a company's normal business operations.

Financial Break-Even

The point at which a project or company generates enough revenue to cover all of its financial costs, including operating expenses and interest.

Cash Flow Forecasts

Predictions about the flow of cash in and out of a business, used for planning and management purposes.

NPV

Net Present Value, a method used in capital budgeting to assess the profitability of an investment or project, calculated by subtracting the present values of cash outflows from the present values of cash inflows over a period of time.