Answer:
0.75 s
Explanation:
From the basic definition of sleed as distance traveled per unit time, s=d/t and making t the subject of the formula then t=d/s where t is time of traveling, d is distance covered and s is the speed. Substituting 6m for distance, d and 8 m/s for speed s then the time is calculated as t=6/8=0.75 s
Therefore, time is equivalent to 0.75 s
Answer:
217.04 rad/s
Explanation:
We are given that
Initial velocity,
t=10 s
Number of rev=20
We have to find the angular velocity at t=24 s
Substitute the values
Substitute the value of k and t=24
<span>5.56%. The formula for percent error is: Percent Error = (|Theoretical value - Experimental value| / Theoretical value) x 100. Remember that the percent error is unitless, and to keep significant figures even after calculations.</span>
A. How much work is being done to hold the beam in place?
Work is the product of Force and Displacement. Since there
is no Displacement involved in just holding the beam in place, hence the work
is zero.
B. How much work was done to lift the beam?
In this case, force is simply equal to weight or mass
times gravity. Hence the work is:
Work = weight * displacement
Work = 500 lbf * 100 ft
Work = 50,000 lbf * ft
C. How much work would it take if the steel beam were
raised from 100 ft to 200ft?
The displacement is still 100 ft since 200 – 100 = 100 ft,
hence the work done is still similar in B which is:
<span>Work = 50,000 lbf * ft</span>
