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1.A shaft on a motor drive accelerates uniformly from rest to 3350 RPM in 5 seco

ID: 1385062 • Letter: 1

Question

1.A shaft on a motor drive accelerates uniformly from rest to 3350 RPM in 5 seconds. Determine the angular acceleration? 2. A saw blade 10 in dia . Accelerates from test to 500 RPM IN 2 seconds. Determine the Tangential acceleration of one of the point tips 1.A shaft on a motor drive accelerates uniformly from rest to 3350 RPM in 5 seconds. Determine the angular acceleration? 2. A saw blade 10 in dia . Accelerates from test to 500 RPM IN 2 seconds. Determine the Tangential acceleration of one of the point tips 2. A saw blade 10 in dia . Accelerates from test to 500 RPM IN 2 seconds. Determine the Tangential acceleration of one of the point tips

Explanation / Answer

As

alpha = (wf - wi) / t

As wf = 3350 rpm = 350.8 rad/s

wi = 0

t = 5 s

Then

alpha = 70.16 rad/s^2 [ANSWER]

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As

alpha = (wf - wi) / t

As wf = 500 rpm = 52.36 rad/s

wi = 0

t = 2 s

Then

alpha = 26.18 rad/s^2

As

atan = alpha R

and R = 10 in / 2 = 5 in,

atan = 130.9 in/s^2 or 3.3248 m/s^2 [ANSWER]