- #1
markyyyyyy
- 2
- 0
- Homework Statement
- please can someone provide the answer to this question? see image attached I keep thinking B and C offer the same but i'm not sure?
- Relevant Equations
- n/a
Can you sketch this for each of the 3 examples? What does it look like before and after you've pulled 1m of rope?markyyyyyy said:i can also say that for every 1 metre of rope pulled, the weight will only move up 0.5m due.
None of the choices provided are correct. [Unless one is very picky about the slant in the middle strand in C or less than appropriately picky about the slant in the left strand in A]markyyyyyy said:Problem Statement: please can someone provide the answer to this question? see image attached I keep thinking B and C offer the same but I'm not sure?
Relevant Equations: n/a
View attachment 247378
A pulley is a simple machine that is used to lift or move heavy objects. It consists of a wheel with a grooved rim and a rope or chain that wraps around the wheel.
A pulley works by changing the direction of force needed to lift an object. When the rope or chain is pulled down, the weight of the object is distributed evenly and it becomes easier to lift.
There are three main types of pulleys: fixed pulleys, movable pulleys, and compound pulleys. Fixed pulleys have a stationary axle and are used to change the direction of force. Movable pulleys have a movable axle and are used to increase the force needed to lift an object. Compound pulleys combine multiple fixed and movable pulleys to create a greater mechanical advantage.
Mechanical advantage is a measure of the force amplification achieved by using a machine, such as a pulley, to lift an object. It is calculated by dividing the output force by the input force.
Pulleys are used in many everyday objects and activities, such as elevators, cranes, flagpoles, and even exercise equipment. They are also commonly used in industries such as construction, manufacturing, and transportation.