A 40-Kg Mass,initially at Rest on a Horizontal Frictionless Surface,is Struck

question 61

Multiple Choice

A 4.0-kg mass,initially at rest on a horizontal frictionless surface,is struck by a 2.0-kg mass moving along the x axis with a speed of 8.0 m/s.After the collision,the 2.0-kg mass has a speed of 4.0 m/s at an angle of 37 $\degree$ from the positive x axis.What is the speed of the 4.0-kg mass after the collision?

• A)2.0 m/s
• B)2.7 m/s
• C)4.9 m/s
• D)2.4 m/s
• E)3.6 m/s

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Definitions:

Compounding Interval

The frequency at which the earned interest is added to the principal balance of an investment, affecting the total compound interest over time.

Monthly Payment

A specified amount of money that a borrower agrees to pay to a lender at regular monthly intervals, often associated with loans or mortgages.

Loan

A sum of money given to a person or entity with the expectation of repayment of the original sum along with agreed interest over a specified period.

Nominal Rate

Refers to the interest rate before adjustments for inflation or other factors.