Question

A bucket is raised from a well by means of a rope which is wound round a wheel of diameter 77 cm .Given that rhe bucket ascends in 1 minute 28 seconds with a uniform speed of 1.1m/sec,calculate the number of complete revolution the wheel makes in raising the bucket.

Answer 1

GIVEN ;
Diameter = 77 cm
Radius = 77/2 × 1/100 m
= 0.385 m
Speed = 1.1 m/s
time = 1min 28 sec = 88 sec

Distance = speed×time
= 1.1×88
= 96.8 m

Number of revolution = distance/circumference
= 96.8/(2×22/7×0.385)
= 96.8×7/44×0.385
= 677.6/16.94
= 40

therefore the wheel will make 40 revolution.

hope this helped you ..........…… !!!!!

Answer 2

Answer:

Step-by-step explanation:

Diameter = 77 cm

Radius = 77/2 × 1/100 m

= 0.385 m

Speed = 1.1 m/s

time = 1min 28 sec = 88 sec

Distance = speed×time

= 1.1×88

= 96.8 m

Number of revolution = distance/circumference

= 96.8/(2×22/7×0.385)

= 96.8×7/44×0.385

= 677.6/16.94

= 40

therefore the wheel will make 40 revolution.