![]() ![]() ![]() For example, let’s look at a baton that is twirled in the middle consisting of a thin rod (mass M), and a point mass, m, on each end as shown below. Using the definition for torque: τ = r x F , which is just the left side then,Ĭonsider an obect object that is made up of more fundamental objects as depicted in the previous table. Substituting from Rotational Kinematics: a tan = r The equation using Newton’s 2 nd Law in the tangential direction would be F = m Since the motion we care about is in the horizontal plane we can ignore the gravitational and normal force on the mass. Since the centripetal force does not affect tangential force, we are not including it in this discussion. In this derivation, our focus is on the effect of the tangential force. * We know that a circular motion requires an inward or centripetal force. A force, F, tangent to a circle of radius, r, is applied to the mass without frictional effects as shown at right. The object's rotation speed may be increasing, decreasing, or remaining constant.Ĭonsider an object of mass, m, on a horizontal surface connected by a massless rod to a center point O. There are 8 ready-to-use problem sets on the topic of Rotational Dynamics. These problem sets focus on the analysis of situations involving a rigid object or objects rotating in either a clockwise or counterclockwise direction about a given point. ![]() Rotational Dynamics: Problem Set Overview ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |