A car with mass 450 kg has a kinetic energy of 16,256 J. What is the speed of the car?A.11.2 m/sB.1.2 m/sC.8.5 m/sD.5.9 m/sSUBMITarrow_backPREVIOUS
Question
A car with mass 450 kg has a kinetic energy of 16,256 J. What is the speed of the car?A.11.2 m/sB.1.2 m/sC.8.5 m/sD.5.9 m/sSUBMITarrow_backPREVIOUS
Solution
The kinetic energy (KE) 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. We can rearrange this formula to solve for v:
v = sqrt((2*KE)/m)
Substituting the given values:
v = sqrt((2*16256 J)/450 kg)
v = sqrt(72504/450)
v = sqrt(161.12)
v = 12.69 m/s
However, this answer is not in the options. It's possible there was a mistake in the question or the options. Please check the values again.
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