Post a New Question

Physics

posted by .

How far x does it move down the incline before coming to rest? Suppose the incline is frictionless. The angle of inclination is 36 ◦ , the spring constant is 89.6 N/m the mass of the block is 9.05 kg and the acceleration of gravity is 9.8 m/s2 .
Answer in units of m
Choosing down the incline as the positive direction, what is its acceleration at its lowest point?
Answer in units of m/s2

  • Physics -

    Someone please answer i need help and do not understand

  • Physics -

    weight component down incline = m g sin 36
    = 9.05 * 9.8* sin 36
    = 52.1 Newtons compressing spring
    work done by gravity = energy in spring
    52.1 x = (1/2) 89.6 x^2
    x = 1.16 m
    F spring = 89.6 * 1.16 =104 Newtons up incline
    net force up = 104 - 52.1 = 52.1 up
    a = F/m = 52.1/9.05 = 5.76 m/s^2

  • Physics -

    damon your answer is wrong i hate you

  • Physics -

    Damon, I love you. By some miracle, my problem had the exact same numbers as Alex so my answers were the same as yours (and I didn't have to do work). The answer for acceleration is negative, not positive, for some reason. If only Grant could've tried changing the sign, maybe next time bud

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question