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What is a pseudo force? Explain with the help of an appropriate example.
Solve the following problem using the concept of pseudo force:
Two rectangular blocks are stacked one over the other on a table. The lower and upper blocks have masses of 25 kg and 5 kg respectively. The coefficient of kinetic friction between the lower block and table is 0.3 and that between the two blocks is 0.6. A pulling force is applied to the lower block by means of a mass less rope attached to it.
a) Draw the free body diagram of the lower block "as seen" from the frame of reference of the table (or ground).
b) Draw the free body diagram of the upper block "as seen" i) from the frame of reference of the table (or ground), ii) from the frame of reference of the lower block.
c) At what acceleration of the lower block does the upper block start slipping relative to the lower block?
d) How much pulling force must be applied to the lower block to give it the acceleration calculated at c) above?
An archer shoots an arrow with a velocity of 30 m/s at an angle of 20 degrees with respect to the horizontal. What is the initial speed of the apple
Two vehicles, A and B, approach a right angle intersection and then collide. After the collision, they become entangled. Find the final velocity of the wreck
A test charge of +3 µC is at a point P where an external electric field is directed to the right and has a magnitude of 4*106 N/C. If the test charge is replaced with another test charge of -3 µC, the external electric field at P does which of the fo..
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A neutron moved through a 0.8 T field with a speed of 151161 m/s. The velocity of the neutron is perpendicular to the field. Evaluate the magnetic force on the neutron
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Closed gaussian surfuce in the shape of a cube of edge length 2.00 m, with one corner at x=5.00m, y=4.00m, what is the net charge contained by the cube
How much work does the string do on the boy if the boy walks a horizontal distance of 11m away from the kite? How much work does the string do on the boy if the boy walks a horizontal distance of 11m toward the kite.
A particle with radius r=5i+4k+3k has a force of F=3i-8j+5k acting on it. What is the torque in unit vector notation about the origin
A golf ball is struck off a tee (negligible height and air resistance) with initial velocity of 50 meters per second at an angle of 30 degrees above the horizontal. Illustrate what will be the vertical component of velocity after 2.5 seconds?
When a certain paramagnetic material is placed in an external magnetic field of 1.50T , The magnetic permeability of this material is
A submarine of mass 2.88 x 106 kg and initially at rest fires a torpedo of mass 251 kg. The torpedo has an initial speed of 105 m/s. What is the initial recoil speed of the submarine
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