Calculate the kinetic energy of a 925kg travelling at 90.0km/h
please show me how to do it and not just the answer for future questions
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Calculate the kinetic energy of a 925kg travelling at 90.0km/h
please show me how to do it and not just the answer for future questions
Kinetic Energy in Joules
KE = ½mV²
plug in the numbers, first converting km/hr to m/s.
.
90km/h = 25 m/s
KE = 1/2 mv^2
= 1/2 x 925 x 25^2
= 289062.5 J
= 289 kJ
Kinetic Energy = 1/2 mv² kg m² s²
Given mass = 925 kg
Velocity = 90 km/h = 90*1000/3600m/s
= 25m/s
So,
K.E. = 1/2 *925*25*25 = 289062.5 Joules
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