Advertisements
Advertisements
Question
Name a machine to change the direction of force ?
Solution
To change the direction of force: a single fixed pulley is used to lift a bucket full of water from the well by applying the effort in the downward direction instead of applying it upwards when the bucket is lifted up without the use of pulley.
APPEARS IN
RELATED QUESTIONS
What is a pulley?
Define the following term in reference to a gear system for Gear ratio ?
Differentiate between a single fixed pulley and a single movable pulley.
What is the use of a fixed pulley?
Name the type of single pulley that can act as a force multiplier. Draw a labeled diagram of the pulley mentioned by you.
What is the relation between the mechanical advantage and the number of strands of string used to support the load, in a ‘block and tackle’ set-up?
What is a pulley?
A block and tackle system of pulleys has a velocity ratio of 4.
- Draw a labelled diagram of the system indicating clearly the points of application and directions of load and effort.
- What is the value of the mechanical advantage of the given pulley system if it is an ideal pulley system?
State one advantage of single movable pulley.
A block and tackle system of pulleys has velocity ratio 4.
- Draw a labelled diagram of the system indicating clearly, the direction of the load and effort.
- Calculate the potential energy of the load 100 kgf lifted by this pulley to a height 5 m. (g = 10 ms-2)