What is the mass of a ball rolling at 5.00m/s if it has 3.00J of kinetic energy?

Question

What is the mass of a ball rolling at 5.00m/s if it has 3.00J of kinetic energy?

in progress 0
RI SƠ 4 years 2021-07-27T10:14:36+00:00 1 Answers 45 views 0

Answers ( )

  1. phucdien
    0
    2021-07-27T10:16:21+00:00
    Reply

    Answer:

    Explanation:

    The equation for Kinetic Energy is

    KE=\frac{1}{2}mv^2 and we know everything but the mass of this ball. Filling in:

    3.00=\frac{1}{2}m(5.00)^2. Get everything isolated from the :

    m=\frac{2(3.00)}{(5.00)^2} which tells us that we need 3 significant digits in our answer.

    m = .240 kg since mass is always in kg i the velocity is in meters/sec

Leave an answer

Browse

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