Motion in A Plane

Physics Part I

Physics

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A bullet fired from a gun with a velocity of 800 ft/s strikes the ground at the same level as the gun at a distance of 17320 ft. Find the angle of inclination with the horizontal at which the gun was fired.

Given that,

Distance of the gun, R = 17320 ft

Initial velocity, u = 800 ft./sec

Horizontal range is given by,

Â Â Â Â Â Â Â Â Â Â

Therefore,

Â Â , is the angle of inclination with the horizontal at which the gun was fired.Â

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What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.Â

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What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.

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