A team of bicyclists are on bikes that require 512 J of work to ride. It takes 432 J of work for the bike to turn the gears. What is the mec

Question

A team of bicyclists are on bikes that require 512 J of work to ride. It takes 432 J of work for the bike to turn the gears. What is the mechanical efficiency of the bike?

in progress 0
Khánh Gia 3 years 2021-08-29T00:03:02+00:00 1 Answers 2 views 0

Answers ( )

  1. thaiduong
    0
    2021-08-29T00:04:58+00:00
    Reply

    Answer:

    84.4 %

    Explanation:

    Mechanical efficiency = output work/input work × 100 %

    output work = 432 J of work for the bike to turn the gears

    input work = 512 J of work to ride.

    Mechanical efficiency =  432 J/512 J × 100 %

    = 0.844 × 100%

    = 84.4 %

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )