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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?
Astronaut Ann wishes to travel from one side of her spaceship to the other side so she pushes herself away from a wall, What is Ann's speed relative to Bob as she drifts across the spacehip
an electron with speed vo 2.61times107ms is traveling parallel to an electric field of magnitude e 1.03 times 104 nc .
A concave makeup mirror is designed so the virtual image it produces is four times the size of the object when the distance between the object and the mirror is 11.5 cm. What is the radius of curvature of the mirror?
Is kinetic energy consumed in the third type of collision studies? Classify the three collision kinds as elastic, inelastic, or completely inelastic.
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A current flow in a circle loop is clockwise. What is the magnetic field at the center of the loop point
A figure skater begins spinning counter clockwise at an angular speed of 4.7 π rad/s. during a 4.9 s interval, she slowly pulsher arms inward and finally spins at 8.2 π rad/s. what is heraverage angular acceleration during this time interval?
Water at 900 psi, 800ºF undergoes an adiabatic, reversible process until the pressure is 1 psi. Find the phase of the final state
A light board, 10 m long, is supported by two sawhorses, one at one edge of the board and a second at the midpoint. What is the force exerted by the sawhorse at the end of the board
A 7.75 H inductor with negligible resistance is placed in series with a 15.7 V battery, a 3.00 ? resistor, and a switch. The switch is closed at time t = 0 seconds. Calculate the current as time approaches infinity
A capacitor is connected across an ac generator whose frequency is 746 Hz, What is the magnitude of the maximum charge on one plate of the capacitor
A wheel is spinning at 46 rad/s when an acceleration of 0.75 rad/s2 is applied. If the acceleration lasts for 140 revolutions, what is the final angular speed
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