Conservation of energy problem dealing with a frictionless pulley and two masses. Solution in MS Word.

A system containing a frictionless pulley is described in the diagram (see question attachment). If this system is released, at what speed does the 12.0 kg object hit the floor? HINT: Does the 12.0 kg object undergo free fall? Why or why not?

Centripetal acceleration on a frictionless circular track involving springs. Solution in JPG format.

A car is to be launched down a frictionless track by compressing a spring behind the car and releasing it - much the same as a pinball machine. If the track contains a circualr vertical loop of radius R, how far must the spring be compressed (x) in order for the car to stay on the track? Given: mass of the car m=840kg. R=6.2m

Calculation of maximum kinetic energy of a spring using various masses. Solution in JPG format.

An ideal, massless spring, pointing upwards from a surface has a mass of 3.0 kg placed on it, compressing it by 25 cm. The 3.0 kg mass is replaced by a 5.0 kg mass. The spring is then compressed by hand so that the end of the spring is 67 cm lower than the position of the spring when no mass is attached. The spring is then relea ...continues

Projectile motion

A bullet fired horizontally is aiming at an object which starts falling at the instant the bullet is fired. Will the bullet hit the object ?

Working with the dynamics of circular motion.

The first problem has to do with circular motion. A fairground attraction called the rotor is a spinning drum with a movable floor that is dropped down as the drum speeds up. The people are held onto the wall by friction. If the minimum friction coefficient is 0.5 what is the rotation rate required before the floor is dropp ...continues

Motion of a single object and several forces acting upon it. Attachments in Word.

A surveillance TV camera is hung from the roof by 2 cables. If the tension on the left cable is T2=12N, find T1 and the weight of the camera. The angle between T2 and the roof is 20 deg and the angle between T1 and roof is 30 degrees.

Understanding Newton's Laws.

What are Newton's 3 Laws?

Newton's Law Questions

I need help setting up and working through three more problems. Most of them I have attempted but could not make them work. Any help is appreciated! Blocks of equal mass M sits on a plane inclined at 30 degrees to the horizontal. The coefficient of friction between the lower block (A) and the plane is 0.50 and between the upp ...continues

Calculating the acceleration of each object suspended with a pulley. Diagram of pulley included in a Word document.

The system consists of 2 objects of Masses M and m and m

Determining the centre of mass of a rod with varying density

The density of a linear rod of length L varies as ρ = A+Bx where x is the distance from the left end. Locate the centre of mass.