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What is the angle between two forces of 2N and 3N having resultant as

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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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Derive expressions for velocity and acceleration for uniform circular motion.OR Derive expression for linear acceleration in uniform circular

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Derive an equation for the path of a projectile fired parallel to

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(a) Define time of flight and horizontal range?(b) From a certain height above the ground a stone A is dropped gently. Simultaneously another stone B is fired horizontally. Which of the two stones will arrive on the ground

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Give an example of a body moving with uniform speed but having a variable velocity and an acceleration which remains constant in magnitude but changes in

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What is the direction of centripetal force when particle is following a circular

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Two vectors `vecA` and `vecB` are perpendicular to each other. What is the value of `vecA .vecB`

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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) What is the angle between `vecA and vecB` if `vecA and vecB` denote the adjacent sides of a parallelogram drawn form a point and the area of the parallelogram is `1/2 AB` ?(b) State and prove triangular law of vector

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What will be the effect on horizontal range of a projectile when its initial velocity is doubled, keeping the angle of projection

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What will be the effect on maximum height of a projectile when its angle of projection is changed from `30^o` to `60^o`, keeping the same initial velocity of

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What is the angular velocity of the hour hand of a

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