Question

5. A bucket containing water is tied to one end of a rope 5 m long and it is rotated in a

vertical circle about the other end. Find the number of rotations per minute in order

that the water in the bucket may not spill. ( Ans: n=13.37 rpm)​

Answer 1

Explanation:

v=√rg is the basic formula for min. speed of the object

Note:ignore the striked line completely , the below is the conversion of rad/sec to rad/min

Answer 2

Answer:

no. of rpm=13.37

Explanation:

concept- to find the no. of rotation per minute in order that the water in the bucket may not spill ,for that velocity will be minimum which is v=√rg

given: length of rope =5m

find : rotations per minute

explanation

v=√rg

v=√5*10

v=√50m/s

v=7.1~_ 7m/s

v=rw

w=v/r

w=7/5rad/sec. (2πn=w)

=7/5*60/2π

n=13.37rpm