Applied Mechanics and Graphic Statics The resultant of the forces acting on a body will be zero if the body Does not move at all Moves with variable velocity in a straight line Moves along a curved path Rotates Does not move at all Moves with variable velocity in a straight line Moves along a curved path Rotates 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 and resultant couple are always zero The resultant force and resultant couple both may not be zero The resultant force is zero but resultant couple may not be zero The resultant force is zero but resultant couple is not zero The resultant force and resultant couple are always zero The resultant force and resultant couple both may not be zero The resultant force is zero but resultant couple may not be zero The resultant force is zero but resultant couple is not zero ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The displacement of a particle which moves along a straight line is given by S = 4t³ + 3t²- 10 where ‘S’ is in meters and t is in seconds. The time taken by the particle to acquire a velocity of 18 m/sec from rest, is 1.2 sec 1.5 sec ½ sec 1 sec 1.2 sec 1.5 sec ½ sec 1 sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is 0.50 0.25 0.75 1.0 0.50 0.25 0.75 1.0 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics One end of an elastic string of natural length ‘l’ and modulus ‘X’ is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance ‘x’, held at rest and then released.The motion is A damped oscillatory motion A rectilinear motion with constant speed None of these A simple harmonic motion A damped oscillatory motion A rectilinear motion with constant speed None of these A simple harmonic motion ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is 60° 45° 120° 30° 60° 45° 120° 30° ANSWER DOWNLOAD EXAMIANS APP
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