A projectile is fired from the origin (at y = 0 m) as shown in the diagram above. The initial velocity components are Vx = 140 m/s and Vy = 84 m/s.
The projectile reaches maximum height at point P, then it falls and strikes
the ground at point Q, which is 20 m below the launch point. Assuming air
resistance is negligible, what is the horizontal component of the velocity
(Vx) of the projectile at point P?

  = = 140 m / s

Explanation:

This is a projectile launch, in this case the components of the initial velocity are seen

Since there is no rice in the X axis, so the velocity is vx, it must be constant, at all times

              = = 140 m / s

The vertical component of velocity changes due to having applied the gravity fiate

              =   - g t

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.