A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will____________________?
(A) never meet
(B) meet after 1 sec
(C) meet after 5 sec
(D) meet after 10 sec
Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is____________________?
(A) 2/3
(B) 1/5
(C) 3/5
(D) 1/3
The number of funicular polygons which can be drawn to pass through two specified points in the space diagram are__________________?
(A) zero
(B) 1
(C) 2
(D) infinity
If the given forces P,, P2, P3 and P4 are such that the force polygon does not close, then the system will___________________?
(A) be in equilibrium
(B) always reduce to a resultant force
(C) always reduce to a couple
(D) both (A) and (C)
Williot-Mohr diagram is used to determine deflection in__________________?
(A) trusses only
(B) beam only
(C) rigid frames only
(D) any type of structure
For a non-concurrent force system to be in equilibrium__________________?
(A) only the closure of force polygon is sufficient
(B) only the closure of funicular polygon is sufficient
(C) both force polygon and funicular polygon must close
(D) none of the above
The condition of equilibrium for any system of forces in a plane is____________________?
(A) that polygon of forces must close
(B) that resultant couple must be zero
(C) both (A) and (B)
(D) none of the above
A funicular polygon cannot be made to pass through___________________?
(A) one specified point
(B) two specified points
(C) three specified points
(D) more than three specified points
The pole distance is measured in___________________?
(A) distance scale
(B) force scale
(C) mass scale
(D) time scale
The member forces in a statically in determinate truss____________________?
(A) can be obtained by graphic statics
(B) cannot be obtained by graphic statics
(C) may be obtained by graphic statics
(D) can be obtained by graphic statics by trial and error