the mass of cyclist together with the bike is 90 kg calculate the increasing kinetic energy pte speed increased from 6 km per hour to 12 km per hour

the mass of cyclist together with the bike is 90 kg calculate the incr

1.	the mass of cyclist together with the bike is 90 kg calculate the increasing kinetic energy pte speed increased from 6 km per hour to 12 km per hour
Answer» Total MASS of the system (cyclist and bike), M=mc+mb=90 kg Initial velocity of the system, u=6.0 km/h=1.666 m/sec Final velocity of the system, ν=12 km/h=3.333 m/sec From work-energy THEOREM, we have: INCREASE in K.E.=12Mν2−12mu2=1290×(3.333)2−12×90×(1.66)2=499.4−124.6=374.8=375 J

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the mass of cyclist together with the bike is 90 kg calculate the increasing kinetic energy pte speed increased from 6 km per hour to 12 km per hour

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