4. Given below is a stratage that used to draw water from well. The sound is produced while using it 184
4kg
i. what is the advantage of minimizing the frictional force on "a"?
ii. Write two methods can be used to reduce the frictional force on "a"
iii. Explain the difference between frictional force which applied on empty bucket and a bucket full of water
iv. The mass of bucket with water is 4 kg. Find the weight of it.
v. a. Calculate the acceleration of bucket which falls down due to broken of its string.
b. Calculated the force exarted on earth while the backet is touch on the earth
vi. State a method of wasting energy in this system
vii. Write the advantage of using core rope instead of nylone rope
viit Coir rope is eco freendly than the nylon rope, Explain briefly.