What Is the Net Power Needed to Change the Speed

question 32

Multiple Choice

What is the net power needed to change the speed of a 1600-kg sport utility vehicle from 15.0 m/s to 40.0 m/s in 4.00 seconds?

• A)100 kW
• B)10.0 kW
• C)140 kW
• D)14.0 kW
• E)275 kW

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Definitions:

Collagen

The main structural protein found in skin and other connective tissues, known for its strength and elasticity.

Melanin

A pigment produced by melanocytes in the skin, hair, and eyes, responsible for coloration and protection against ultraviolet (UV) light damage.

Oxygen

A chemical element (O) essential for most forms of life on Earth, vital for cellular respiration in organisms.

Friction

The resistance encountered when one object is moved in contact with another.