what is the work to be done to increase the velocity of a car from 30 km h - 1 to 60 km h -1 if the mass of the car is 1500 kg
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work to do on the car in order to increase its velocity from 30 to 60 kmph is the difference in its kinetic velocity at both of these velocities
W= 0.5m[(v2^2)-(v1^2)]
w= work done on car
m= mass of car
v= velocity of car
convert velocity from kmph to m/s
v1= 30*5/18 m/s
v2=60*5/18 m/s
W= 0.5*1500*[277.83-69.5]
W= 750*[208.33]
W= 156250 N.m
W= 0.5m[(v2^2)-(v1^2)]
w= work done on car
m= mass of car
v= velocity of car
convert velocity from kmph to m/s
v1= 30*5/18 m/s
v2=60*5/18 m/s
W= 0.5*1500*[277.83-69.5]
W= 750*[208.33]
W= 156250 N.m
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