<span>Using the kinematic equations below, we can calculate the initial velocity required.
Angle of projectile = 60 degrees
Acceleration due to gravity (Ay) = -10 m/s^2 (negative because downward)
Height of projectile (Dy) = 2m
Vfy^2=Voy^2 +2*Ay*Dy
Vfy = 0 m/s because the vertical velocity slows to zero at the height of its trajection.
So... 0 = Voy^2 + 2(-10)(2)
0 = Voy^2 - 40
40 = Voy^2
Sqrt40 = Voy
6.32 m/s = Voy
THIS IS NOT THE ANSWER. THIS IS JUST THE INITIAL VELOCITY IN THE Y DIRECTION.
Using trigonometry, Tan 60 = Voy/Vox. Tan 60 = 6.32/Vox. Vox*Tan 60 = Vox
Vox = 10.95 m/s. Now, using Vox = 10.95 and Voy = 6.32, we can use pythagorean theorem to find the total Vo. A^2 +B^2 = C^2
10.95^2 + 6.32^2 = C^2
Solving for C = 12.64 m/s
This is the velocity required to hit the surface. You can also calculate a bunch of other stuff now using the other kinematic equations.
V = 12.64 m/s</span>
Newton would not agree with that explanation, and he would tell my brother to go to his room. Then Newton would turn to me and explain:
Once the soccer ball is in motion, it will continue moving in a straight line with constant speed, until external forces change its motion. (Newton's #1 Law of Motion).
There are external forces on the soccer ball after the kick: gravity, air resistance, and scraping through grass.
Gravity has no effect on its horizontal motion. But air resistance and scraping through grass are both friction ... they both rob kinetic energy from the ball. Once the kinetic energy of the ball is all gone, it doesn't move any more. An observer looking at the ball and measuring its motion would write in his notebook "The ball has stopped." .
The species is actually endangered and not extinct because there are only 20 species left. Extinct actually means that there would be no species left and so it an incorrect option. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has helped you.
Answer:
ITS OPTION B...
AS THOMAS HAS GIVEN THE DIAGRAM IN WHICH THE NUCLEUS LOOKS LIKE THEY EMBEDDED IN IT...LIKE SEEDS IN WATERMELON /CHRISTMAS PUDDING
Field lines always point away from the positive side of a magnet. So i would say east but im not to sure
