D. move in parabolic path, the unexploded bomb would have traveled. When a horizontal force of 3 N is applied to the block of mass 2 kg. 956 A body of mass 1kg attains a kinetic energy of 1250J after falling freely from a height of. So, Work done = Fs cos 90°. This gravitational force is conservative in nature and the work done by the conservative force in moving the body around the closed path is always zero. The potential energy of the ball half way up is. A. straight line motion. 964 A force, F acting on an object varies with distance x as shown in the diagram. Then the long piece will have a constant of...................?
The mass of the second body is. Its angular momentum with respect to the origin is. When the distance of particles from the rotational axis (ri) decreases, the moment of inertia (Ii) decreases. What is the linear acceleration of the rope? In such situation when main lifting blade of the helicopter turns in a clockwise direction, as per Newton's third law due to reaction force, the helicopter 's body tries to rotate in the direction opposite to the main propeller, hence it is difficult to lift and control the helicopter. 962 A body of mass 5 kg (initially at rest) is subjected to a force of 10 N. The kinetic energy acquired by the body at the end of 20s is.
930 Two springs have their force constant as K1 and K2 (K1 > K2). C. during the return journey. Since, E1= E2 so, the heavier ball has greater momentum than the lighter. 923 If the magnitude of two vectors, are 2 and 3 respectively and the magnitude of their product is 3, then the angle between the vectors is. 922 The dimensional formula of work is. 908 Consider the following two statements: I. 974 Read the assertion and reason carefully to mark the correct option out of the options given below.
B. conservative force. The change in momentum of the body is. The height at which its K. will become half of its initial value is. 938 A man pushes a roller with a force of 50 N through a distance of 20 m. The work done if the handle of roller is inclined at an angle of 600with the ground is. 911 A planet moving around the Sun is a good illustration of. A. equal to the work done by the force in 12 s. B. equal to the work done by the force in 4 s. C. equal to the work done by the force in 8 s. D. equal to the work done by the force in 2 s. m = 4 kg; u = 0; F = 1 N; t = 4 s. Acceleration, a = F/m. Potential energy decreases on the raising of an air bubble in water as work is done by upthrust. In this case, the moment of inertia of whole system is the sum of the moment of inertia of the bug and the turning table. B. law of conservation of angular momentum. Since, the application of force produces acceleration so, the angle between force and displacement is acute and work done is positive. Similar Questions Asked By Users. 942 A force is applied on a moving body, which retards its motion. 986 A particle starts rotating from rest according to the formula. After collision, it bounce back with the same velocity, V and making the same angle of 450 with the surface.
In figure (b) the car is tilted but as the vertical line through the centre of gravity is inside the case of the car and so the car will fall back to the level again. Reason: The angular speed of the turning table increases to conserve its angular momentum. Office hours: 9:00 am to 9:00 pm IST (7 days a week). So, p1 (m1E1)1/2 and p2 (m2E2)1/2. Assertion: A wheel of radius R and angular speed ω is rolling without slipping towards right on a horizontal stationary surface. The power of heart assuming that the pulse frequency is 80 beats per minute is (given, density of mercury=13. Angular momentum = moment of momentum. 5 kg moving with a speed of 1. This result in decreases in the net moment of inertia of the bug and table system. 7. the frictional force on the block is?? 5 kg particle that moves along the x-axis. Work = force x displacement.
Work done = Change in K. [From Work-Energy Theorem]. Find tension t1 and t2. Right Answer is: Absolute velocity of man=Vr-V, where V= recoil velocity of the platform. 109 24 3600)J/(3108m/s)2. Find the average force exerted by the bat on the ball. Initially, both the man and the platform were at the rest. D. potential to kinetic energy.
MLT-2)(LT-1) [ As F = ma and v = d/t]. So, Energy = powertime. B. move vertically downwards. C. law of conservation of energy. The work done by the force in moving the object from x = 0 to x = 6 m is. 6, the ball rebounds to a height of. 1 kg is thrown vertically upwards with an initial speed of 20 ms–1. The horizontal ranges are equal.
So, dimensional formula of force = MLT-2 [ As a =v/t and v =d/t]. B. chemical to potential energy. 933 A body of mass 2 kg is projected vertically upwards with a velocity of 2 m/s. The work done by this force in moving the body through a distance of 10 m, is. It its the ground with... So, W = F. s. Since, the displacement(s) is zero so, the work done is also zero. Thus, energy of the planet remains constant inspite of its revolution around the Sun. Dimensional formula of work = (MLT-2) (L). D. both the balls have zero momentum. B. electrical energy. D. does not shift horizontally.
D. uniform circular motion.
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