GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -So, Horizontal component of velocity remains constant for a projectile fired from the earth.
Detailed explanation-2: -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-3: -Hence, only acceleration and horizontal component of velocity remain constant.
Detailed explanation-4: -Vx the velocity in the horizontal (x) direction. ∆dx the distance in the horizontal (x) direction. Vy ↓ the velocity in the vertical (y) direction.
Detailed explanation-5: -The velocity of the horizontal component of the projectile motion is constant because there is no external force which acts on the horizontal component of the velocity, but the external force acts on the vertical component of the velocity.