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Ksivusya [100]
3 years ago
5

Calculate the kinetic energy in joules of a 1,500 kg car that is moving at a speed of 42 km/h

Physics
1 answer:
Rzqust [24]3 years ago
4 0
Data:
KE (Kinetic Energy) = ? (Joule)
m (mass) = 1500 Kg 
v (speed) = 42 Km/h
converting to m/s (42 / 3.6), we have: v (speed) = 11.6 m/s

Formula:
K_{E} =   \frac{1}{2} m*v^2

Solving:
K_{E} = \frac{1}{2} m*v^2
K_{E} =  \frac{1}{2} *1500*(11.6)^2
K_{E} = \frac{1}{2} *1500*134.56
K_{E} =  \frac{201840}{2}
\boxed{\boxed{K_{E} = 100920\:Joule}}\end{array}}\qquad\quad\checkmark





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The displacement of a 500 g mass, undergoing simple harmonic motion, is defined by the function :
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