Answer:
<u>a) 28.34 m</u>
Step-by-step explanation:
Finding ∠RQS :
Length of arc RS :
- 2πr × θ/360
- 2 x 22/7 x 14 x 116/360
- 44 x 2 x 29/90
- 88 x 29/90
- 2552/90
- <u>28.34 m</u>
x − y = 0 = difference
x + y = 4 = sum
Can be solved by the sum and difference rule (most of the time without pen and paper)
x=(sum+difference)/2=0+4/2=2
y=(sum-difference)/2=(4-0)/2=2
Answer:
0.875
Step-by-step explanation:
Answer:
11860.22 rev/hour
Step-by-step explanation:
The diameter if a cylinder, d = 21.02 inches
Radius, r = 10.51 inches
or
r = 0.875 feet
The linear speed of a point on the cylinder's surface is 18.12 ft/sec.
We need to find the angular speed of the cylinder.
The relation between the linear speed and the angular speed is given by :

Where
is angular speed

or

So, the required angular speed of the cylinder is 11860.22 rev/hour.