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

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

ANSWER DOWNLOAD EXAMIANS APP

Applied Mechanics and Graphic Statics
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

Is directly proportional to their velocity of approach
Bears a constant ratio to their velocity of approach
Is inversely proportional to their velocity of approach
Is equal to the sum of their velocities of approach

ANSWER DOWNLOAD EXAMIANS APP