A speedboat travels from the dock to the first buoy, a distance of 20 meters, in 18 seconds. It began the trip at a speed of o m
2 answers:
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For this case we have that by definition, the average power is given by:
Where:
W: It is the work done
t: It's time
According to the data we have to:
So:
Answer:
Given:
Applied stress,
Critical Resolved Stress,
Solution:
a). According to the question, orientation of tensile load is along [1 1 1],
Now, for resolved shear stress, along [1 0 1] within (1 1 T)
let '' be the angle between [1 1 1] and [1 0 1], then by coordinate formula:
=
=
let '' be the angle between [1 1 1] and [1 1 1], then by coordinate formula:
= 1
Now, for the resolved components along [1 0 1]
=
=
= 0.3673 MPa
b). For required tensile stress to produce :