Q; An electric scooter has a battery capable of supplying 140 Wh of energy. If f
ID: 1743920 • Letter: Q
Question
Q;An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other lossesaccount for 60.0% of the energy usage, what altitude change can arider achieve when driving in hilly terrain, if the rider andscooter have a combined weight of 950N?
Q;
An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other lossesaccount for 60.0% of the energy usage, what altitude change can arider achieve when driving in hilly terrain, if the rider andscooter have a combined weight of 950N?
Explanation / Answer
Given that the energy given by the battery is E = 140 Wh = 140*3600Ws The loss of energy due to friction is Eloss= E*60% Weightof the rider and scooter is W = 950 N ------------------------------------------------------------------------------------------------------ Then the net energy used to climb the hill is Ef= 140*3600Ws ( 1 - 0.60) =0.40*140*3600Ws From the conservation of energy mgh = Ef W*h= Ef h = Ef / W =0.40*140*3600Ws / 950N = --------- mRelated Questions
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