According to the shop manual, when drilling a 11.8mm--diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1400 rev/min. 1) For a 11.8mm--diameter drill bit turning at a constant 1400 rev/min , find the maximum linear speed of any part of the bit.
2) Find the maximum radial acceleration of any part of the bit.

a) v max = 0.1376 m,/s

b) a max = 3.212 m/s^2

Explanation:

a) To find the maximum linear sped of any part of the bit, you use the following formula:

      (1)

v: linear speed

w: angular velocity of the bit = 1400 rev/min

r: distance to the center of the bit

You can observe that for r=rmax you obtain the maximum linear speed.

rmax = diameter/2 = 11.8mm/2 = 5.9mm

Before you replace the values of w and r in the equation (1), you convert to appropriate units:

Then, you obtain:

the maximum linear speed of the bit is 0.1376 m/s

b) The maximum radial acceleration is given by:

the maximum radial acceleration is 3.212 m/s^2

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !