Compound axial member ABC has a uniform diameter of d = 1.50 in. Segment (1) is an aluminum [E1 = 10,000 ksi] alloy rod with a l
ength of L1 = 90 in. Segment (2) is a copper [E2 = 17,000 ksi] alloy rod with a length of L2 = 130 in. When axial force P is applied, a strain gage attached to copper segment (2) measures a normal strain of 2 = 2,100 in./in. in the longitudinal direction. What is the total elongation of member ABC?
1 answer:
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Answer:
a) 4.45 m/s
b) 0.9 seconds
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s²
a) The vertical speed when the player leaves the ground is 4.45 m/s
Time taken to reach the maximum height is 0.45 seconds
Time taken to reach the ground from the maximum height is 0.45 seconds
b) Time the player stayed in the air is 0.45+0.45 = 0.9 seconds