Abike (mass of bike + rider = 85 kg) is coasting on a flat road at 10 m/s. what is the kinetic energy of the bike and rider?

You did not show answer options, but that is alright; I will help the best I can. The formula to figure out kinetic energy from the mass and velocity is K = 1/2mv^2 (squared). What you want to do is plug in the values of the equation that you currently have (So, m = 85 and v^2 = 10 m/s). Solving this new equation out ( K = 1/2(85)(10)^2) will give you an answer of 4,250 joules, but then again I do not know what unit the problem wants the kinetic energy to be in.

Question was not very clear if there are specific answer choices tell me and i'll try to you more. hope this though2 laps is 1 min. we know that for each min she does two times the amount of laps. for 12 laps we can do 12/2 which does give us 12 laps in 6 mins not 16 mins.