Question

2. A 1500-kg automobile is traveling at a velocity of 120 m/s. How much kinetic energy does
it possess?​

Answer 1

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Given that :

m=1500 kg

v = 120 m/s

$kinetic \: energy = \frac{1}{2} {mv}^{2}$

$k.e. = \frac{1}{2} \times {1500 \times (120})^{2}$

$k.e = 750 \times 14400$

KE = 10800000 J

$k.e = 108 \times {10}^{5} j$

Or

KE = 10.8 MJ

MJ = megajoule