Answer:
Explanation:
Ductile materials typically have a higher ultimate strength because they stretch absorbing more energy before breaking. While fragile materials snap in half before larger deformations due to larger loads occur.
It should be noted that when ductile materials stretch their section becomes smaller, and in that reduced section the stresses concentrate.
Answer:
Explanation:
Total Stopping distance is the sum of the reaction distance and the braking distance, such that ;
d=dr + db =1.47St +[ ( Si 2- Sf2 ) / 30(F/0.01G) ]
In this case, the reaction time, t, is the AASHTO standard, or 2. 5 s. The friction factor, F, is based upon the standard AASHTO deceleration rate of 11.2 ft/s2 (F = 11.2/32.2 = 0.348) and the speed is given as 40 mph.
d = 1.47x60x2.5+ [ (60^2-40^2) / 30x 0.348 ]
d = 220.5 + ( (3600-1600) / 10.44 )
d = 220.5 + 191.57
d = 412.07ft.
Since the sign can be seen clearly at 120 ft.
Then the position of the sign should be,
= 412.07 - 120
= 292.07 ft
Answer:
because it will keep the tires in much better shape and it can improve the handling and keep your car from pulling to one side
Explanation:
Answer:
the answer is attached with required units.
Explanation:
