Using a Motion Sensor,Susana Finds That the Acceleration of a 4-Kg

question 31

Multiple Choice

Using a motion sensor,Susana finds that the acceleration of a 4-kg rock that has been dropped from the roof of a building is 6 m/s².She concludes that the magnitude of force of air resistance acting on the rock is approximately

• A)39.2 N
• B)24.0 N
• C)15.2 N
• D)9.81 N
• E)None of these is correct.

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Definitions:

Machines

Mechanical or electronic devices that perform tasks or assist in carrying out tasks, ranging from simple tools to complex systems.

Average Cost

It refers to the total cost per unit produced, calculated by dividing the total cost of production by the number of units produced.

Copper

A reddish-brown, malleable, ductile metallic element used as a conductor of heat and electricity, and in various alloys.

Zinc

A chemical element with symbol Zn and atomic number 30, used primarily for galvanizing steel to protect against corrosion.