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Questions and Answers
If a box weighing 1 ton is placed on a floor with a coefficient of friction of 1/4, what is the minimum force required to start the box moving?
If a box weighing 1 ton is placed on a floor with a coefficient of friction of 1/4, what is the minimum force required to start the box moving?
- 600 Kgf (correct)
- 800 Kgf
- 1000 Kgf
- 400 Kgf
A block of mass 2 Kg slides down a rough inclined plane starting from rest at the top. If the inclination of the plane to the horizontal is θ with tan θ = 4, what is the acceleration of the block?
A block of mass 2 Kg slides down a rough inclined plane starting from rest at the top. If the inclination of the plane to the horizontal is θ with tan θ = 4, what is the acceleration of the block?
- 6.1 m/s^2 (correct)
- 4.9 m/s^2
- 7.3 m/s^2
- 8.5 m/s^2
A force of 600 Kgf is required to support a block on an inclined plane whose slope is 60°. What is the weight of the block?
A force of 600 Kgf is required to support a block on an inclined plane whose slope is 60°. What is the weight of the block?
- 4 tons
- 1 ton (correct)
- 3 tons
- 2 tons
If the coefficient of friction between the floor and a box is 1/3, what is the minimum force required to start the box moving if the box weighs 2 tons?
If the coefficient of friction between the floor and a box is 1/3, what is the minimum force required to start the box moving if the box weighs 2 tons?
A block is placed on a rough inclined plane whose slope is 30°. If the coefficient of friction is 1/3, what is the force required to support the block?
A block is placed on a rough inclined plane whose slope is 30°. If the coefficient of friction is 1/3, what is the force required to support the block?
If three forces acting at a point are in equilibrium, what is the relationship between the forces?
If three forces acting at a point are in equilibrium, what is the relationship between the forces?
What is the resultant of the forces acting on a particle represented by ABCDE?
What is the resultant of the forces acting on a particle represented by ABCDE?
What is the condition for equilibrium of three forces acting at a point?
What is the condition for equilibrium of three forces acting at a point?
What is the moment of a couple about a point?
What is the moment of a couple about a point?
If a horizontal force F is applied to a small object P of mass m on a smooth plane inclined to the horizon at an angle θ, what is the condition for equilibrium?
If a horizontal force F is applied to a small object P of mass m on a smooth plane inclined to the horizon at an angle θ, what is the condition for equilibrium?
What is the branch of mechanics that deals with the study of systems of forces in equilibrium?
What is the branch of mechanics that deals with the study of systems of forces in equilibrium?
What are the four necessary things to specify a force completely?
What are the four necessary things to specify a force completely?
What is the resultant of two forces, P and Q, acting at a point, represented by the diagonal of the parallelogram?
What is the resultant of two forces, P and Q, acting at a point, represented by the diagonal of the parallelogram?
If two forces, P and Q, are perpendicular to each other, what is the resultant force?
If two forces, P and Q, are perpendicular to each other, what is the resultant force?
If P = Q, what is the angle that the resultant force makes with the direction of force P?
If P = Q, what is the angle that the resultant force makes with the direction of force P?
What is the magnitude of the moment of a force about a point O?
What is the magnitude of the moment of a force about a point O?
If P is moved parallel to itself through a distance x, what is the expression for the resultant of P and Q?
If P is moved parallel to itself through a distance x, what is the expression for the resultant of P and Q?
What is the S.I unit of moment of a force?
What is the S.I unit of moment of a force?
What does the moment of a force about a point measure?
What does the moment of a force about a point measure?
What is the expression for the moment of a force about a point O in terms of the area of the triangle formed by the force and the point?
What is the expression for the moment of a force about a point O in terms of the area of the triangle formed by the force and the point?
What is the direction in which the force F1 tends to turn the lamina?
What is the direction in which the force F1 tends to turn the lamina?
What is the algebraic sum of the moments of any two coplanar forces about a point, according to Varignon's theorem?
What is the algebraic sum of the moments of any two coplanar forces about a point, according to Varignon's theorem?
What is the characteristic of a couple that distinguishes it from other systems of forces?
What is the characteristic of a couple that distinguishes it from other systems of forces?
What is the physical quantity that is considered positive when its direction is anticlockwise, and negative when its direction is clockwise?
What is the physical quantity that is considered positive when its direction is anticlockwise, and negative when its direction is clockwise?
What is the term for the perpendicular distance between the lines of action of the forces forming a couple?
What is the term for the perpendicular distance between the lines of action of the forces forming a couple?
What is the direction of the resultant force when two forces of equal magnitude act at an angle?
What is the direction of the resultant force when two forces of equal magnitude act at an angle?
What is the condition for the resultant of two forces P and Q to act along the direction of P?
What is the condition for the resultant of two forces P and Q to act along the direction of P?
What is the component of a force R in a direction making an angle α with the line of action of R?
What is the component of a force R in a direction making an angle α with the line of action of R?
What is the resultant of two forces P and Q acting at a point O in directions OA and OB, represented by λ.OA and μ.OB respectively?
What is the resultant of two forces P and Q acting at a point O in directions OA and OB, represented by λ.OA and μ.OB respectively?
What is the angle made by the resultant force with the direction of force P when the resultant force R of two forces P and Q acting at an angle α makes an angle θ with the direction of P?
What is the angle made by the resultant force with the direction of force P when the resultant force R of two forces P and Q acting at an angle α makes an angle θ with the direction of P?
