An Astronaut Stands by the Rim of a Crater on the Moon

question 185

Multiple Choice

An astronaut stands by the rim of a crater on the Moon, where the acceleration of gravity is 1.62 and there is no air. To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the depth of the crater is 120 m, how long does it take for the
Rock to fall to the bottom of the crater?

• A) 32.1 s
• B) 37.5 s
• C) 12.2 s
• D) 29.3 s
• E) 3.04 s

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Definitions:

MIRR

Modified Internal Rate of Return, a financial measure used to assess the attractiveness of investments, adjusting for the cost of capital and considering the reinvestment of cash flows.

NPV

Net Present Value, a method used in investing to calculate the difference between the present value of cash inflows and outflows over a period of time.

Required Rate Of Return

The minimum return that an investor is willing to accept for owning a company's stock, given its risk.

Cash Flows

The total amount of money being transferred into and out of a business, particularly concerning liquidity.