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A simple inclined plane
Join a spring balance to a toy car or roller skate and pull it up a slanting board (inclined plane). Note the force needed to move the car and compare it with the force required to lift it vertically. Note also that in moving up the inclined plane, the force is exerted over a greater distance than when the car is lifted vertically to the similar height above the table. Neglecting friction, the work needed is the similar in both cases. Point out that this is also true for other easy machines.
simple inclined plane
Q. Cue Ball Slip Problems? A cue ball is struck beside a line through its centre and parallel to the table. It moves forward primarily with zero angular rotation, sliding acros
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why ballistic missile is unpowered and unguided
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derivation by calculas method of Snth = (Sn – Sn -1) = u + a/2 (2n – 1)
When an earthquake occurs, two types of sound waves are generated and travel through the earth. The primary, or P, wave has a speed of about 7.5 km/s and the secondary, or S, wave
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Find the value of g by free fall method.
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