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While running Usain Bolt covers certain distance at a speed of 30 km/hr and another distance which is thrice the earlier distance at 45 km/hr. Find the average speed of Usain Bolt. 
To which sport is the name 'Usain bolt' related?
To which sport the name "Usain Bolt" is related ?
Consider the following statements regarding typical analysis of bolt failure :  1. 15% failure of bolt occur at the fillet under the head. 2. 50% failure of bolt occur at the end of threads on the shank. 3. 80% failure of bolt occur in the threads that are in contact with the nut. Which of the above statements is/are correct ?
Which of the following stresses are associated with the tightening of a nut on a bolt? P. Tensile stress due to the streching of bolt Q. Bending stress due to the bending of bolt R. Torsional shear stress due to frictional resistance between the nut and the bolt Select the correct answer using the codes given below.
A wall bracket is attached to the wall by means of 2 identical bolts, one at A and one at B. The force of 20kN acts at a distance of 400mm. Bolt A lies at a distance of 50mm from axis of tilt and bolt B 500mm. Allowable shear stress in the bolts is 100N/mm² and tensile is 40N/mm². Find the radius of Mohr circle which can be made from the shear stress and tensile stress acting on bolts.(Consider bolt under max stress and area of bolt is A)
Nominal bearing strength of bolt is 2.5kbdtfu where kb depends on (i) end distance, (ii)pitch distance, (iii)ultimate tensile stress of bolt, (iv)shank area of bolt, (v)yield stress of bolt, (vi)diameter of hole
Which of the following best describes Usain Bolt's signature "Lightning Bolt" pose?
Usain Bolt is a well-known player in which international sport?
Usain Bolt is associated with which sport?