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Mechanics | Relativity
. A chandelier of 10 kg hangs from a cord attached to the ceiling, and a second chandelier
of 3.0 kg hangs from a cord below the first (see the figure below). Draw the ‘free-body’
diagram for the first chandelier and the ‘free-body’ diagram for the second chandelier.
Find the tension in each of the cords.
of 3.0 kg hangs from a cord below the first (see the figure below). Draw the ‘free-body’
diagram for the first chandelier and the ‘free-body’ diagram for the second chandelier.
Find the tension in each of the cords.
Mechanics | Relativity
A planet of mass M moves around the Sun along an ellipse so that its minimum distance from the Sun is equal to r and the maximum distance to R. Making use of Kepler s laws, find its period of revolution around the Sun.
Mechanics | Relativity
- The box with 5kg are placed on a frictional inclined plane with u:0.5 and it’s released from that position as shown in the figure.
which is the acceleration of the box in m/s2 ?
(sin 53=0.8; cos53=0.6 and g=10m/s2)
Mechanics | Relativity
A horizontal disc rotates with a constant angular velocity ω = 6.0 rad/s about a vertical axis passing through its centre. A small body of mass m = 0.50 kg moves along a diameter of the disc with a velocity v* = 50 cm/s which is constant relative to the disc. Find the force that the disc exerts on the body at the moment when it is located at the distance r = 30 cm from the rotation axis.
Mechanics | Relativity
A particle has shifted along some trajectory in the plane xy from point 1 whose radius vector r1 = i + 2j to point 2 with the radius vector r2 = 2i - 3j. During that time the particle experienced the action of certain forces, one of which being F = 3i + 4j. Find the work performed by the force F. (Here r1, r2, and F are given in SI units).
Mechanics | Relativity
The kinetic energy of a particle moving along a circle of radius R depends on the distance covered s as T = as2, where a is a constant. Find the force acting on the particle as a function of s.
Mechanics | Relativity
A particle has shifted along some trajectory in the plane xy from point 1 whose radius vector r1 = i + 2j to point 2 with the radius vector r2 = 2i - 3j. During that time the particle experienced the action of certain forces, one of which being F = 3i + 4j. Find the work performed by the force F. (Here r1, r2, and F are given in SI units).
Mechanics | Relativity
A man suspends a fish from the spring balance held in his hand and the balance reads 9.8N. While
shifting the balance to his other hand, the balances slips and falls down. What will be the reading of the
balance during the balance during the fall?
Mechanics | Relativity
A machine having a V.R 4 needs 2000J of energy to left a load of 400N through a perpendicular distance of 2.5m.Calculate
A.efficiency
B.M.A
A.efficiency
B.M.A
Mechanics | Relativity
The maximum speed with which you can throw a stone is about 25 m/s (a professional baseball pitcher can do much better than this).Can you hit a window 50 m away and 13 m up from the point where the stone leaves your hand? What is the maximum height of a window you can hit at this direction?
