Applied Mechanics and Graphic Statics If the angle of projection is double the angle of inclination (α) of the plane on which particle is projected, the ratio of times of flight up the inclined plane and down the inclined plane, will be ½ cos α ½ sin α 2 cos α ½ tan α ½ cos α ½ sin α 2 cos α ½ tan α ANSWER DOWNLOAD EXAMIANS APP
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 2.5 m/sec 0.5 m/sec 1.0 m/sec 1.5 m/sec 2.5 m/sec 0.5 m/sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ?i. 1.0 in from the wallii. 1.732 m from the walliii. 1.0 m above the flooriv. 1.732 m above the floorThe correct answer is (i) and (iii) (ii) and (iii) (ii) and (iv) (i) and (iv) (i) and (iii) (ii) and (iii) (ii) and (iv) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The condition of equilibrium for any system of forces in a plane is Both (A) and (B) That resultant couple must be zero That polygon of forces must close None of these Both (A) and (B) That resultant couple must be zero That polygon of forces must close None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Maximum efficiency of a screw jack for the angle of friction θ, is (1 - sin θ)/sin θ sin θ/(1 + sin θ) (1 + sin θ)/(1 - sin θ) (1 - sin θ)/(1 + sin θ) (1 - sin θ)/sin θ sin θ/(1 + sin θ) (1 + sin θ)/(1 - sin θ) (1 - sin θ)/(1 + sin θ) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec²) 15 m/sec 50 m/sec 25 m/sec 40 m/sec 15 m/sec 50 m/sec 25 m/sec 40 m/sec ANSWER DOWNLOAD EXAMIANS APP
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