84451. A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.
84452. When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as
84453. If two blocks of equal mass are attached to the two ends of a light string and one of the blocks is placed over a smooth horizontal plane while the other is hung freely after passing over a smooth pulley, then the two blocks will have some motion.
84454. During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
84455. Work done is said to be zero, when
84456. The force which acts along the radius of a circle and directed away from the centre of the circle is called centrifugal force.
84457. One watt is equal to
84458. two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
84459. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is __________ the momentum of body having mass m2.
84460. The point, through which the whole weight of the body acts, irrespective of its position, is known as
84461. The loss of kinetic energy during elastic impact is zero.
84462. The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ .
84463. Which of the following is a scalar quantity?
84464. The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as
84465. In ideal machines, mechanical advantage is __________ velocity ratio.
84466. The minimum force required to slide a body of weight W on a rough horizontal plane is
84467. The moment of inertia of a square of side a about its diagonal is
84468. The angular velocity (in rad / s) of a body rotating at N revolutions per minute is
84469. The maximum efficiency of a lifting machine is
84470. The centre of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.
84471. The process of finding out the resultant force is called __________ of forces.
84472. A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is
84473. In a framed structure, as shown in the below figure, the force in the member BC is
84474. The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.
84475. If a number of forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium.
84476. The periodic time of a particle with simple harmonic motion is __________ proportional to the angular velocity.
84477. The motion of a particle round a fixed axis is
84478. A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is
84479. If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
84480. The principle of transmissibility of forces states that, when a force acts upon a body, its effect is
84481. A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is
84482. If three forces acting at a point are represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are in equilibrium.
84483. Newton's second law motion __________ a relation between force and mass of a moving body.
84484. Which of the following are vector quantities?
84485. The maximum acceleration of a particle moving with simple harmonic motion is
84486. A lift moves downwards with an acceleration of 9.8 m/s2. The pressure exerted by a man on the floor of the lift is zero.
84487. Non-coplaner concurrent forces are those forces which
84488. The best approximation of Square root of 2 among the value is
84489. In a framed structure, as shown in the below figure, the force in the member AC is numerically equal to the force in member BC.
84490. The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.
84491. Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is
84492. Concurrent forces are those forces whose lines of action
84493. Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.
84494. According to the law of moments, if a number of coplaner forces acting on a particle are in equilibrium, then
84495. A machine having an efficiency less than 50%, is known as
84496. The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called
84497. The unit of mass moment of inertia in S.I. units is kg-m2.
84498. A newton is defined as the force while acting upon a mass of one kg, produces an acceleration of 1 m / s2 in the direction of which it acts.
84499. The acceleration of a particle moving with simple harmonic motion, at any instant is given by
84500. The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
Powered By:Omega Web Solutions