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A cannon of a level plane is aimed at an angle above the horizontal and a shell is fired muzzle velocity towards a cliff distance away. The height at which the canon strikes the cliff is given by
The correct answer is:
Time taken to cover horizontal distance with constant horizontal velocity, . Taking vertical motion for time , we have
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A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 s for every circular lap. The average velocity and average speed for each circular lap is
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Two stones are projected from the same speed but making different angels with the horizontal. Their horizontal ranges are equal. The angle of projection of one is and the maximum height reached by it is 102 m. Then maximum height reached by the other in metre is
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Neglecting the air resistance, the time of flight of a projectile is determined by
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