Electric Car Help: Calculating Horsepower Needed

[gamer6218]

electric car help :)

A projected electric vehicle makes use of storage batteries as its source of energy. Its mass is 1560 kg and it is powered by 24 batteries, each 12 V, 95 A hr. Assume that the car is driven on level roads at an average speed of 32.4 km/hr and the average friction force is 240 N. Assume 100% efficiency and neglect energy used for acceleration. No energy is consumed when the vehicle is stopped, since the engine doesn’t need to idle. Determine the horsepower required.

 

[Dick]

You need to show what sorts of concepts you would use to solve this problem and an attempt at a solution before we can help. I will tell you that you don't need all of the information you are given. Which info is necessary and which isn't?

 

[gamer6218]

A simple force*velocity = power, converted into horsepower seems to work. seems I posted prematurely. Sorry for that :(

 

[Dick]

Right you are.