Answer:
Points downward, and its magnitude is 9.8 m/s^2
Explanation:
The motion of a projectile consists of two independent motions:
- A uniform horizontal motion, with constant velocity and zero acceleration. In fact, there are no forces acting on the projectile along the horizontal direction (if we neglect air resistance), so the acceleration along this direction is zero.
- A vertical motion, with constant acceleration g = 9.8 m/s^2 towards the ground (downward), due to the presence of gravity wich "pulls" the projectile downward.
The total acceleration of the projectile is given by the resultant of the horizontal and vertical components of the acceleration. But we said that the horizontal component is zero, therefore the total acceleration corresponds just to its vertical component, therefore it is a vector with magnitude 9.8 m/s^2 which points downward.
Answer with Explanation:
We are given that


a.x=-0.2 m

Where 
Net electric field=E+E'=4500+1237.5=5737.5 N/C
b.x=0.20 m
Net electric field=E-E'=4500-1237.5=3262.5 N/C
c.y=0.20 m
E=1237.5 N/C
Net electric field=
Displacement vector that is 8 im magnitude
Answer:
three balls have the same speed
Explanation:
In a parabolic motion we have that

but the time just before the balls hit the ground is

Hence we have
ball A

ball B

ball C

Hence, all three balls have the same speed just before hit the groug
vA=vB=vC
I hope this is useful for you
regards
They're a medium (c) of communication
A. mediation is what you so when you want to bring the sides of conflict together
b. is a person who is advocating something
d. is a presentation of some opinion or facts.