-93mv 1 (8.49). In an amusement park ride like a problem we did in class, passengers stand inside of 2.5-m radius hollow cylinder with their backs against the wall. The cylinder begins to rotate and at a cortain angular speed, the floor on which the passengers are standing falls away, leaving the passengers "stuck" to the wall. The static coefficient of friction between clothing and the wall has a range of 0.6 to 10. (The answers below do not depend on the mass of the passenger. You may call the mass m or assign a value, for example 50 kg.) a) Draw a diagram of the forces on a passenger after the floor has dropped away. b) What is the minimum speed in m/sec for which all passengers will be struck to the wall c) What is the angular speed in rad/sec? d) At what rate does the cylinder spin in rpm? dindor that 2 (851 In th
Angular Momentum
The momentum of an object is given by multiplying its mass and velocity. Momentum is a property of any object that moves with mass. The only difference between angular momentum and linear momentum is that angular momentum deals with moving or spinning objects. A moving particle's linear momentum can be thought of as a measure of its linear motion. The force is proportional to the rate of change of linear momentum. Angular momentum is always directly proportional to mass. In rotational motion, the concept of angular momentum is often used. Since it is a conserved quantity—the total angular momentum of a closed system remains constant—it is a significant quantity in physics. To understand the concept of angular momentum first we need to understand a rigid body and its movement, a position vector that is used to specify the position of particles in space. A rigid body possesses motion it may be linear or rotational. Rotational motion plays important role in angular momentum.
Moment of a Force
The idea of moments is an important concept in physics. It arises from the fact that distance often plays an important part in the interaction of, or in determining the impact of forces on bodies. Moments are often described by their order [first, second, or higher order] based on the power to which the distance has to be raised to understand the phenomenon. Of particular note are the second-order moment of mass (Moment of Inertia) and moments of force.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images