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What is the angle of projection at which horizontal range and maximum height are

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Prove that for elevations which exceed or fall short of `45^o` by equal amounts the ranges are

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At what range will a radar set show a fighter plane flying at 3 km above its centre and at distance of 4 km from

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Two forces 5 and 10 kg wt are acting with an inclination of `120^o` between them. What is the angle which the resultant makes with 10kg

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A stone is thrown vertically upwards and then it returns to the thrower. Is it a projectile?

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Which is greater the angular velocity of the hour hand of a watch or angular velocity of earth around its own

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Why does the direction of motion of a projectile become horizontal at the highest point of its

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A vector `vecA` has magnitude 2 and another vector `vecB` have magnitude 3 and is perpendicular to each other. By vector diagram find the magnitude of `2vecA +vecB` and show its direction in the

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Find a unit vector parallel to the resultant of the vectors`vecA=2hati+3hatj+4hatk and

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A body is moving on a curved path with a constant speed. What is the nature of its

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A stone tied at the end of string is whirled in a circle. If the string breaks, the stone flies away tangentially.

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What are the two angles of projection of a projectile projected with velocity 30m/s, so that the horizontal range is 45m. Take, `g =

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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The blades of an aeroplane propeller are rotating at the rate of 600 revolutions per minute. Calculate its angular

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A soda water bottle is falling freely. Will the bubbles of the gas rise in the water of the

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Two billiard balls each of mass 0.05kg moving in opposite directions with speed 6m/s collide and rebound with the same speed. What is the impulse imparted to each ball due to

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A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei, the products must be emitted in opposite

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Explain why passengers are thrown forward form their seats when a speeding bus stops

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A bird is sitting on the floor of a wire cage and the cage is in the hand of a boy. The bird starts flying in the cage. Will the boy experience any change in the weight of the

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Why does a cyclist lean to one side, while going along curve? In what direction does he

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How does banking of roads reduce wear and tear of the

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