Post a New Question

Physical science

posted by .

A player uses a hockey stick to increase the speed of a 0.200 kg hockey puck by 6 m/s in 2 seconds. How much did the hockey puck accelerate? How much force was exerted on the puck? How much force did the puck exert on the hockey stick?

  • Physical science -

    Assuming the puck was stationary to begin with and experiences constant acceleration, vf=vi+a*t
    rearrange to isolate for a, you get
    but the initial velocity was zero, so

    once you know a,

    Newton's Third says for every action there is a reaction, so whatever force the stick exerts on the puck, the force exerted on the stick by the puck is of equal magnitude

  • Physical science -

    what are your name

  • Physics -

    The puck accelerated 6m/s in 2s, which (assuming constant acceleration) is 3m/s^2

    f = m*a
    f = 0.200kg * 3m/s^2 = 0.6N
    From Newton's Third Law,
    there was 0.6N exerted both on the puck by the stick, and 0.6N on the stick by the puck

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question