A special pulley has two discs with radii R1 = .8 m and R2 = .35 m. A rope from the R2 disc connects the pulley to a wall and a rope from the R1 disc connects the pulley to a hanging mass. The axle is frictionless. The total mass of the pulley is 15 kg.
a. If the hanging mass is 20 kg, what is the tension in the rope connected to the wall?
b. What is the total force that the axle exerts on the pulley? In other words, what total force must the axle exert for the pulley to remain in equilibrium?
c. If the rope attached to the wall is cut, the mass falls 2 m in 1.2 seconds. What is the moment of inertia of the pulley?
The 2 pulleys in the figure have radii of 15 cm and 8 cm, respectively. The larger pulley rotates 25 times in 36 seconds find the angular velocity of each pulley in radians per second. Find angular velocity of each pulley in
6cm diameter discs are cut from a sheet 130cm long and 70cm wide.(a)How many discs can be cut in this way (b) what area of the sheet is wasted? (My working so far). Area of rectangle=L*B 130*70=9100cm^2 area of circle=22/7
The ratio of rock music to total discs that Ellen owns is 25/40. Paul has 50 rock music discs. The ratio of rock music to total discs in his collection is equivalent to the ratio of rock music to total discs in Ellen's collection.
You are selling tickets for a high school concert. Student tickets cost $4 and general admission tickets cost $6. You sell 450 tickets and collect $2340. How many of each type of ticket did you sell? A music store is selling
Two spools with equal radii and equal masses are wound onto opposite ends of a massless string, the center of which is then hung over a massless, frictionless pulley, as in the diagram to the right. The spool on the left is a