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3 years ago

After a projectile is fired into the air, what is the acceleration in the x-direction? (Assume no air resistance.)

Physics

2 answers:

storchak [24]3 years ago

5 0

Answer:

$a_x = 0$

Explanation:

When projectile is in air then the force on the projectile is only due to its weight

It is vertically downwards

$F_g = mg(-\hat j)$

so here since we don't have any air drag or friction due to air so there will be no force along its tangent or along x direction

so the acceleration along x direction will be zero

$a_x = 0$

$a_y = - g$

Gre4nikov [31]3 years ago

4 0

Without air resistance, there is no horizontal force on the projectile,
so it has no horizontal acceleration. The answer is "zero".

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2 years ago

A physical pendulum in the form of a planar object moves in simple harmonic motion with a frequency of 0.460 Hz. The pendulum ha

zlopas [31]

Answer:

The moment of inertia is $I =1.0697 \ kg m^2$

Explanation:

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2 years ago

What happens if the air pressure in your throat and outside body is less than the air pressure in your middle ear when you swall

andrezito [222]

Answer:

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