Respuesta :
Kinetic energy = 1/2 (mass) (speed squared)
KE = 1/2 (70kg) (2m/s)^2
KE = (35 kg) (4 m^2/s^2)
KE = (140) kg-m^2/s^2
That's 140 Newton-meter
or
140 Joules
The kinetic energy is 140 joules
The parameters given in the question are
mass= 70 kg
velocity= 2m/s
Kinetic energy= 1/2mv²
= 1/2 × 70 × 2²
= 0.5 × 70 × 4
= 140 joules
Hence the kinetic energy is 140 joules
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