Mass of a bus is 2400 kg . ……… J . Work is to be done in producing velocity 36 (km)/hin .it

Mass of a bus is 2400 kg . ……… J . Work is to be done in produci

1.	Mass of a bus is 2400 kg . ……… J . Work is to be done in producing velocity 36 (km)/hin .it
Answer» `1.2 xx10^(6)` `120 xx10^(6)` `1.2 xx10^(5)` `12xx10^(5)` Solution :m = 2400 kg , `V = 36 (km)/h = (36 xx1000)/3600 = 10 m//s ` Now , Work `W = K.E .K =1/2 "mv"^(2) "" (:. "Taking " v_(0) = 0)` ` = 1/2 xx2400 xx10^(2)` `= 1.2 xx10^(5) J `