Applied Mechanics and Graphic Statics
A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at 3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is

1.0 m/sec
1.5 m/sec
0.5 m/sec
2.5 m/sec

ANSWER DOWNLOAD EXAMIANS APP

Applied Mechanics and Graphic Statics
If a set of given forces are such that their free vectors build a closed polygon, then

The resultant force is zero but resultant couple may not be zero
The resultant force and resultant couple both may not be zero
The resultant force is zero but resultant couple is not zero
The resultant force and resultant couple are always zero

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Applied Mechanics and Graphic Statics