<span>The acrylic plastic rod is 200 mm long and 15 mm in
diameter. If an axial load of 300 N is applied to it, determine
the change in its length and the change in its diameter.
. latd = -0.0002515 (15) = -0.00377 mm
elat = -Velong = -0.4(0.0006288) = -0.0002515
d = elong L = 0.0006288 (200) = 0.126 mm
elong = s
E = 1.697(106
)
2.70(109
) = 0.0006288
s = P
A = 300 p
4 (0.015)2 = 1.697 MPa
•3–25. T</span>
Answer:
Explanation:
F = ma = mΔv/Δt = 90(14 - 10) / (6 - 0) = 60 N
p = mv = 90(14) = 1,260 kg•m/s (for bicyclist AND bike together)
Work= force*distance*cos(theta)
Since there's no angle here, this turns into 100*5= 500 joules.
What textbook is it though.....?