GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gravity, g
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Horizontal velocity, vx
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Initial velocity, vi
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Vertical velocity, vy
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Detailed explanation-1: -The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.
Detailed explanation-2: -Since there is no acceleration in the x direction, vx remains constant, and the range is simply the product of and the time. The range in the previous example depends on the angle q at which the projectile is fired above the horizontal.
Detailed explanation-3: -Hence, only acceleration and horizontal component of velocity remain constant.
Detailed explanation-4: -In projectile motion, there is a constant velocity along the horizontal direction and constant acceleration along the vertical direction.
Detailed explanation-5: -The horizontal velocity remains constant, because there is no acceleration in that direction. The length of the horizontal velocity vector doesn’t change. THE VERTICAL & HORIZONTAL MOTIONS ARE INDEPENDENT.