View the step-by-step solution to:

Question

practice exam physics please help




A 0.150-kg rubber stopper is

attached to the end of a 1.00-m string and is swung in a circle.  

     a) If the stopper makes 0.85 rev/s, what is the force the string exerts on the stopper? (1pt)

     b) If the rubber stopper is swung 2.3 m above the ground and released, how far will the     stopper travel horizontally before hitting the ground?(1pt)


A person on a ferry walks at a speed of 2.0 m/s. The ferry's velocity is 5.0 m/s north.

     a) In which direction should the person walk to have the maximum possible speed relative to a person standing on the dock? What is this speed?(1pt)

     b) In which direction should the person walk to have the smallest possible speed relative to a person standing still on the dock? What is this speed?(1pt)

Top Answer

1a. f c = 4 . 2 8 N 1b. d =... View the full answer

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question