A Machinist Turns on the Power on to a Grinding $96 \mathrm { rad } / \mathrm { s }$

question 46

Multiple Choice

A machinist turns on the power on to a grinding wheel at time t = 0 s. The wheel accelerates uniformly from rest for 10 s and reaches the operating angular speed of $96 \mathrm { rad } / \mathrm { s }$ The wheel is run at that angular velocity for 40 s and then power is shut off. The wheel slows down uniformly at $1.5 \mathrm { rad } / \mathrm { s } ^ { 2 }$ until the wheel stops. For how long a time after the power is shut off does it take the wheel to stop?

• A)64 s
• B)62 s
• C)66 s
• D)68 s
• E)70 s

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Definitions:

Admission Exception

A legal principle allowing statements by a party to be used as evidence against them, typically in a court of law.

Statute of Fraids

Likely intended to refer to the "Statute of Frauds," which is a legal concept requiring certain types of contracts to be in writing to be enforceable.

Statute of Frauds

The Statute of Frauds is a legal principle that requires certain types of contracts to be in writing and signed by the parties involved, in order to be enforceable.

Hearsay Rule

A legal principle that excludes the use of statements made outside the court to prove the truth of the matter asserted, due to reliability concerns.