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Algebra
Pregunta

A \( 2000 \) -kilogram sports car accelerates at a...

\( 2000 \) -kilogram sports car accelerates at a rate of \( 30 \) meters per second squared. The velocity of the car is \( v = \) at, where \( a \) is acceleration in meters per second squared, and \( t \) is time in seconds. The kinetic energy of the car is \( K E = \frac { 1 } { 2 } m v ^ { 2 } \) , where \( m \) is the mass in kilograms. Which function represents the kinetic energy of the car after accelerating for \( t \) seconds? 

\(K E = 1000 t ^ { 2 } \) 

\( K E = 30,000 t ^ { 2 } \) 

\( K E = 60,000 t ^ { 2 } \) 

\( K E = 900,000 t ^ { 2 }\) 

Answer

D

Solución
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