In this lesson we learn about dynamics problems that involve several masses that are connected and accelerating together. Using the pulley system illustrated to the right below as an …

A pulley is a device that can increase the magnitude of an effort force. Without Pulley With no pulley - the effort force is similar to the load - in opposite direction.

Here’s a real pulley problem that requires one to do some real kinematic analysis of the pulley. In Part A below, we draw free body diagrams, write equations of motion, and begin working out …

On this page I put together a collection of pulley problems to help you understand pulley systems better. The required equations and background reading to solve these problems are given on …

The cord from the truck to the first pulley is on a diagonal, so the length of that section does not increase linearly with the trucks motion: $$L=-2X_A+\sqrt{{Y_t}^2+C^2}$$ Where $Y_t$ is the …

Since the rope rotates without slipping along the edge of the pulley, we can use our equations for s = rθ, v = r ω, and a = r α to relate the motion of a point along the rim of the pulley (aka, the …

As a result, pulley B and block 2 move together. The goal of the problem is to calculate the accelerations of blocks 1 and 2. The solution of this problem is divided into four parts: Part I : …

A bucket with mass m 2 and a block with mass m 1 are hung on a pulley system. Find the magnitude of the acceleration with which the bucket and the block are moving and the …

The analysis of such systems is known as rotational dynamics. A pulley with a mass M and a radius R is mounted on a frictionless horizontal axle passing through the center of the pulley. A …

Dynamic balancing – also referred to as “two-plane balancing” – goes one step beyond static balancing and ensures that the pulley’s center of mass is on the same axis as its center of …