1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Physics Homework Question due in 20mins, literally have no idea what i'm doing

  1. Dec 12, 2009 #1
    014 (part 1 of 2) 10.0 points

    A(n) 19 g object moving to the right at
    24 cm/s overtakes and collides elastically with
    a 34 g object moving in the same direction at
    14 cm/s.

    Find the velocity of the slower object after
    the collision.

    Answer in units of cm/s.

    015 (part 2 of 2) 10.0 points

    Find the velocity of faster object after the

    Answer in units of cm/s.

    016 10.0 points

    A(n) 4.72 kg sphere makes a perfectly in-
    elastic collision with a second sphere that is
    initially at rest. The composite system moves
    with a speed equal to one-third the original
    speed of the 4.72 kg sphere.

    What is the mass of the second sphere?

    Answer in units of kg.
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Threads - Physics Homework Question Date
Question about Electric Field lines (MCQ) Feb 23, 2018
Capacitance questions Feb 21, 2017
Physics Newton's Second law HW Question Feb 11, 2017
Physics 221 Calc-based question for homework Jan 20, 2017