can someone plz go help me answer my question? I have to ask twice bc no one answered it the first time. a figure skater can increase her sp

Question

can someone plz go help me answer my question? I have to ask twice bc no one answered it the first time. a figure skater can increase her spin rotation rate from an initial rate of 1.0 rev every 1.5s to a final rate of 2.5rev/s. If her initial moment of inertia was 4.6kgxm^2, what is her final moment of inertia?

in progress 0
Dulcie 5 years 2021-08-13T13:35:08+00:00 1 Answers 10 views 0

Answers ( )

  1. thanhha
    0
    2021-08-13T13:36:32+00:00
    Reply

    Answer:

    1.2 kg m²

    Explanation:

    Angular momentum is conserved:

    L = L

    Iω = Iω

    (4.6 kg m²) (1.0 rev / 1.5 s) = I (2.5 rev/s)

    I = 1.2 kg m²

Leave an answer

Browse

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