The magnitude of the acceleration in the y-direction is [tex]9.8 m/s^2[/tex]
Explanation:
When a projectile is fired into the air, there is only one force acting on it (neglecting air resistance): the force of gravity, which pulls the projectile downward with a force of
F = mg
where m is the mass of the projectile and [tex]g=9.8 m/s^2[/tex] is the magnitude of the acceleration of gravity. This force acts along the y-direction, downward.
Since there are no other forces acting, therefore, the motion of the projectile consists of two separate motions:
- A uniform motion along the x-direction, with constant velocity
- A uniformly accelerated motion along the y-direction, with constant acceleration ([tex]g=9.8 m/s^2[/tex])
So, the magnitude of the acceleration in the y-direction is [tex]9.8 m/s^2[/tex].
Learn more about projectile motion:
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