A Particle of Unknown Mass Has a Momentum of 73

question 20

Multiple Choice

A particle of unknown mass has a momentum of 73 kg · m/s.At a time 7.3 s later,the momentum of the particle is 38 kg · m/s.What is the magnitude of the force acting on the particle during the interval,assuming the motion is in a straight line?

• A)It cannot be determined because the mass of the particle is not given.
• B)4.8 N
• C)10 N
• D)5.3 N
• E)9.4 N

---

Definitions:

Deflation

A decrease in the general price level of goods and services, often indicating a contraction in the amount of money or credit available in the economy.

CPI

The Consumer Price Index tracks the weighted average price changes of a basket containing consumer goods and services, such as food, healthcare, and transportation, to gauge average price movements.

Prices Increase

A situation where the general level of prices for goods and services rises, often measured by the inflation rate.

CPI

A calculation tool, the Consumer Price Index, measures the mean prices of a selected basket of consumer services and goods including food, transportation, and medical services via their weighted average.