During Autocross, a Formula Student vehicle accelerates from 30 km/h to 100 km/h. Assume that there is no friction and no aerodynamic drag. The mass of the vehicle is m = 190 kg. The amount of energy needed for this accelaration is denoted by E. What would be the theoretical velocity vc if the vehicle is accelerated from standstill using the same amount of energy E? Enter the solution in km/h and round to one decimal place. What would be the theoretical velocity vF of Fred, the FSG race Alpaka as shown in the picture, accelerating from standstill and using 1/10th of the energy E? Fred's initial mass in standstill is 50 kg. When reaching 20km/h, Fred will loose 750g of mass in no time. Assume, that the lost mass does not provide any thrust and has no initial relative velocity with respect to Fred. Fred is free of friction and aerodynamic drag. Round both solutions to one decimal place. Give the solution in the following format: vc, vF, e.g. 1.2, 3.4
- 95.4, 59.2Correct
Official answer
95.4, 59.2
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- FSG 2021 · ev · quiz 8