Angular Momentum and Centripetal Force
Not what you're looking for?
A car of mass 1000kg moves with a speed of 50 m/s on a circular track of radius 100m. What is the magnitude of its angular momentum (in kg.m^2/s) relative to the center of the racetrack?
==============================================
Answers:
a) 5 x 10^2
b) 5 x 10^6
c) 2.5 x 10^6
d) 2.5 x 10^4
#################################################
A 50 kg ice skater is moving at 5 m/s when she grabs the loose end of a rope, then opposite end of which is tied to a pole. She then moves in a circle of radius 1m around the pole. Determine the force exerted by the rope on her arms.
==============================================
a) 1250 N
b) 250 N
c) 50 N
d) 1100 N
================================================
Purchase this Solution
Solution Summary
The solution provides calculations for angular momentum and centripetal force. Step by step problem solving and equations are provided.
Solution Preview
Hello and thank you for posting your question to Brainmass.
Angular momentum is defined as
J=P*r*sin(w)
Where P is the linear momentum vector's magnitude of the object and r is the distance vector's magnitude from the object to the ref. point. w is the angle between the two vectors.
in our case ...
Purchase this Solution
Free BrainMass Quizzes
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.
Basic Physics
This quiz will test your knowledge about basic Physics.
Variables in Science Experiments
How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.
The Moon
Test your knowledge of moon phases and movement.