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Physics, 26.09.2021 05:00 DD8156

Your friend says you can't use the equation x = vo t + 1/2a( t )^2 to find the horizontal displacement of a horizontal projectile with a constant velocity because you don't know the acceleration in the horizontal directon. Is your friend correct? Why or why not? 1. My friend is incorrect. The acceleration is always -9.8 m/s^2
2. My friend is correct. A different equation must be used to find x.
3. My friend is incorrect The horizontal acceleration is the same as horizontal velocity. 4. My friend is incorrect. If the velocity is constant, then the horizontal acceleration is zero.

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