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Étiquette : ICSE/ISC PHYSICS
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Block and Trolley System: Acceleration and String Tension Calculation
Question: What is the acceleration of block and trolley system shown below, if the coefficient of kinetic friction between the trolley and the surface is 0.04? What is the tension in the string? (take g=10 ms-2).Neglect the mass of the string. Solution: Acceleration and tension calculation The force on the block causes tension in the…
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Tension and Acceleration Calculation for Pulley System with Blocks and Table
Question: Find the tension and acceleration in the string in which the one end of the string is attached to a block of mass m lying on the table and the other end of the string with mass ‘2m’ is hanging off the table after running over a pulley, attached to the end of the…
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Uniform Acceleration: Magnitude and Displacement Calculation
Question: A particle starts from the origin with uniform acceleration.Its dislacement after t seconds is given by the relation $${x=2+5t+7t^2}$$ Calculate the magnitude of its Solution: (1) Initial velocity: The displacement of the particle after t seconds is given by the relation $${x=2+5t+7t^2}$$ The velocity of the particle can be found by differentiating the dislacement…
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Circular Orbit Speed Calculation for Satellite: 42250 Km Radius in 24 Hours
Question: An artificial satellite is moving in a circular orbit of radius 42250 Km.Calculate its speed if it takes 24 hours to revolve around the earth. Solution: Circular orbit speed calculation: $${Speed =\frac{Distance \ travelled}{Time \ taken}}$$ Speed of the artificial satellite=$${\frac{Distance \ travelled \ by \ the \ satellite}{Time \ taken \ by \…
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Gravity Motion Problem: Analyzing Velocity and Distance
A body is thrown up with a velocity 100 ms-1. It travels 5 m in the last second of its journey.If the same body is thrown up with a velocity 200 ms-1, how much distance (in metre) will it travel in the last second? (take g=10 ms-2) Question: Solution: Distance travelled in the last second…