For This Problem,assume No Friction

question 56

Multiple Choice

For this problem,assume no friction.A mass m₂ = 3.5 kg rests on a horizontal table and is attached by strings to masses m₁ = 1.5 kg and m₃ = 2.5 kg as shown.The masses m₁ and m₃ hang freely.The system is initially held at rest.After it is released,the acceleration of mass m₂ will be

• A)zero
• B)1.3 m/s²
• C)5.2 m/s²
• D)8.7 m/s²
• E)9.8 m/s²

---

Definitions:

NEMA Motors

Motors designed to meet standards set by the National Electrical Manufacturers Association, specifying performance and dimensional criteria.

Nine-lead

Refers to a specific wiring configuration often used in electric motors that allows for the connection of the motor to different voltages, enhancing its versatility.

Delta Connected Motor

A method of connecting a three-phase motor where the ends of each coil are connected in a triangle or delta configuration, allowing for the use of a high voltage network.

High Voltage

Refers to electric potential at a level high enough to pose a hazard to humans, typically classified as more than 1000 volts in alternating current (AC) or 1500 volts in direct current (DC).