GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the acceleration of the object launched along the horizontal direction and assumed that air resistance is negligible?
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9.8 m/s
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-9.8 m/s
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Same at the initial velocity
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Zero
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Explanation:
Detailed explanation-1: -An object in free-fall experiences constant acceleration if air resistance is negligible.
Detailed explanation-2: -The acceleration of the horizontal motion is zero (in the absence of air resistance). constant horizontal velocity.
Detailed explanation-3: -The vertical component is governed by g the acceleration due to gravity. The horizontal component is not opposed by any force ignoring the air friction. Thus the horizontal component remains unchanged ie the horizontal acceleration is zero.
Detailed explanation-4: -Nothing accelerates a projectile horizontally, so horizontal acceleration is always zero.
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