How do you solve a spring pulley problem?
Hint: To solve this type of problems, the first step is to find the mean position of the spring mass system i.e. the natural length of the spring is the position of equilibrium point. Second step is to displace the object from its mean position, the restoring force will act on the body.
How does mass of pulley affect tension?
Mass-less pulley is characterized by the fact that it does not affect the magnitude of tension in the string. It means that tensions in the string on either side of the pulley remains same. In general, a “mass-less” pulley changes the direction of force (tension) without any change in magnitude.
Are masses A and B accelerating?
Are masses A and B accelerating? They are both accelerating, because there is a change in velocity.
Does a massless pulley rotate?
It is a different matter although that a massless pulley requires zero torque(zero friction) to rotate. The pulley will rotate . When the pulley has mass , (T2-T1)R = Iα and α=a/R .
What causes a pulley to rotate?
As I mentioned previously, the simple pulley is a wheel and axle with a rope or belt looped around it. As the rope is tugged, the pulley turns. The force on the rope travels around the pulley to the other end of the rope, so the pulley changes the direction of the force.
How do you rotate a pulley?
Sometimes it is necessary to reverse the rotation of the driven pulley wheel in relation to the driver pulley. If the driver is rotating in an anti-clockwise direction the driven pulley may be required to rotate in a clockwise direction. This is achieved by twisting the belt as shown in the diagram above.
What is full load torque?
The Full-load Torque is the torque required to produce the rated power of an electrical motor at full-load speed. In imperial units the Full-load Torque can be expressed as. T = 5252 Php / nr (1)
How much torque can a person apply?
An easy estimate of the force is a person’s weight in pounds (because a pound IS a unit of force). That was going to be my answer as well. If you push on a 1 mile long (5280 feet) lever arm with say… 200lbs, which is about what most adult men can bench press then you’d produce 1,056,000 ft*lbs of torque.
What happens if you have too much torque?
Too much force can cause a technician to strip threaded fasteners or stretch bolts beyond their limits, which can result in loose nuts or cause the bolt to crack and break.
How much torque can a 1/2 ratchet take?
150 ft-lbs will break a 3/8″ drive usually and about 300 ft-lbs will break a 1/2″ drive. These are on regular breaker bars that are partially hollow and have the little ball in the space of the head to hold the socket. A SOLID 1/2″ heat treated impact rated drive anvil will go up to about 1200 ft-lbs.