An Object Attached to an Ideal Massless Spring Is Pulled

question 18

Multiple Choice

An object attached to an ideal massless spring is pulled across a frictionless surface. If the spring constant is 45 N/m and the spring is stretched by 0.88 m when the object is accelerating at 2.0 m/s², what is the mass of the object?

• A) 20 kg
• B) 17 kg
• C) 22 kg
• D) 26 kg

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Definitions:

Blood

A bodily fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those cells.

Erythroblastosis Fetalis

A serious blood disorder in newborns caused by an incompatibility between the blood types of the mother and baby.

Blood Transfusions

The process of transferring blood or blood products from one person into the circulatory system of another, commonly used to replace lost components of the blood.

RhoGAM Injections

Immunoglobulin injections given to Rh-negative mothers during and after pregnancy to prevent Rh incompatibility with an Rh-positive fetus.