Applied Mechanics and Graphic Statics
The centre of gravity of the trapezium as shown in below figure from the side is at a distance of Applied Mechanics and Graphic Statics mcq question image

(h/2) × [(b + 2a)/(b + a)]
(h/3) × [(2b + a)/(b + a)]
(h/3) × [(b + 2a)/(b + a)]
(h/2) × [(2b + a)/(b + a)]

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Applied Mechanics and Graphic Statics
The phenomenon of collision of two elastic bodies takes place because bodies

All listed here
Attempt to regain its original shape due to their elasticities
Immediately after collision come momentarily to rest
Tend to compress each other till they are compressed maximum possible

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Applied Mechanics and Graphic Statics
Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down

Momentum of rubber ball is less than that of lead ball
Change in momentum suffered by lead ball is less that of rubber ball
Rubber and lead balls undergo equal changes in momentum
None of these

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