what is the kinetic energy of a 150 kg object that is moving with a speed of 15 m/s
KE = 1/2mv^2
KE = 1/2150kg(15 m/s)^2
KE = 75kg 225m²/s²
KE = 16875 kgm²/s²
KE = 16875 N*m
KE = 16,875 J
The kinetic energy of the object is 16.875 kJ.
Kinetic energy can be described as the energy of the system when it is in a moving condition. The kinetic energy of the system can be assessed by:
\(\rm Kinetic\;energy\;=\;\frac{1}{2}\;mv^2\)
where, m = mass of the object (kg)
v = velocity of the object (m/s)
Given, mass = 150 kg,
velocity = 15 m/s
\(\rm Kinetic\;energy\;=\;\frac{1}{2}\;\times 150\;kg\;\times (15\;m/s)^2\)
Kinetic energy = \(\rm \frac{1}{2}\;\times 150\;kg\;\times\;225\;m/s\)
Kinetic energy = 16,875 Joules
1000 Joule = 1 kilojoule
16,875 J = \(\rm \dfrac{16,875}{1000}\) kJ
Kinetic energy = 16.875 kJ.
The kinetic energy of the object is 16.875 kJ.
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