A dog drags a 1-kg bone across the floor for 2 meters with an applied force of 10N. How long did it take him if he used 40 Watts of po

Question

A dog drags a 1-kg bone across the floor for 2 meters with an applied
force of 10N. How long did it take him if he used 40 Watts of power?
seconds

in progress 0
Diễm Kiều 4 years 2021-08-12T15:42:47+00:00 1 Answers 8 views 0

Answers ( )

  1. Dulcie
    0
    2021-08-12T15:44:20+00:00
    Reply

    Answer:

    0.5 seconds

    Explanation:

    Work = Fdcos(theta) = 10*2*cos(0) = 20 J

    Power = W/t

    40 = 20/t

    t = 0.5s

Leave an answer

Browse

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