Which car has the most kinetic energy?A.A car of mass 1800 kg with speed 15 m/sB.A car of mass 1500 kg with speed 10 m/sC.A car of mass 1500 kg with speed 15 m/sD.A car of mass 1800 kg with speed 10 m/s
Question
Which car has the most kinetic energy?A.A car of mass 1800 kg with speed 15 m/sB.A car of mass 1500 kg with speed 10 m/sC.A car of mass 1500 kg with speed 15 m/sD.A car of mass 1800 kg with speed 10 m/s
Solution
The kinetic energy of an object can be calculated using the formula:
KE = 1/2 * m * v^2
where m is the mass of the object and v is its velocity.
Let's calculate the kinetic energy for each car:
A. KE = 1/2 * 1800 kg * (15 m/s)^2 = 202500 Joules B. KE = 1/2 * 1500 kg * (10 m/s)^2 = 75000 Joules C. KE = 1/2 * 1500 kg * (15 m/s)^2 = 168750 Joules D. KE = 1/2 * 1800 kg * (10 m/s)^2 = 90000 Joules
So, the car with the most kinetic energy is Car A with 202500 Joules.
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