Question

Problem2:

Johnny throws a ball at angle of 70^{⁰ .} The velocity
of the ball is 15 m/s when it leaves his foot.

Calculate the following: Show all the formulas you use and write your complete calculation under each part.

- Initial velocity in X, and Y direction

V_{ͦ X} =

V_{ͦ Y} =

b- Time to reach to its maximum height.

c) Maximum height of the ball with respect to the ground.

Answer #1

1. Julie throws a ball to her friend Sarah. The
ball leaves Julie's hand a distance 1.5 meters above the ground
with an initial speed of 21 m/s at an angle 58 degrees; with
respect to the horizontal. Sarah catches the ball 1.5 meters above
the ground.
a. After catching the ball, Sarah throws it back to Julie. The
ball leaves Sarah's hand a distance 1.5 meters above the ground,
and is moving with a speed of 14 m/s when...

Nicholas throws a ball with an initial speed of 10.00 m/s at
an angle of 58° above the horizontal. The ball leaves her hand 0.88
m above the ground and experience negligible air resistance.
(a)How far from where the child is standing does the ball hit
the ground?
(b)How long is the ball in flight before it hits the
ground?
(c)What is the magnitude of the ball's velocity just before
it hits the ground?
(d)At what angle below the horizontal...

Julie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 21 m/s at an angle 56 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
1)What is the horizontal component of the ball’s velocity when
it leaves Julie's hand?
2)What is the vertical component of the ball’s velocity when it
leaves Julie's hand?
3)What is the maximum height the...

Julie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 24 m/s at an angle 30 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
What is the horizontal component of the ball’s velocity right
before Sarah catches it?
What is the vertical component of the ball’s velocity right
before Sarah catches it?
What is the time the ball...

3. In a shot-put event, an athlete throws the shot with an
initial speed of 20 m/s at a 37° angle from the horizontal. The
shot leaves her hand at a height of 1.50 m above the ground. a)
What is the maximum height? What is the net velocity at maximum
height? b) How much time does it take to reach the ground? c) What
is the maximum horizontal displacement? d) What is the final
velocity (magnitude and direction) of...

Julie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 16 m/s at an angle 32 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
a) What is the vertical component of the ball’s velocity right
before Sarah catches it?
b) After catching the ball, Sarah throws it back to Julie.
However, Sarah throws it too hard so it...

Julie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 21 m/s at an angle 59 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
a. What is the vertical component of the ball’s velocity right
before Sarah catches it?
b. What is the distance between the two girls?
c. After catching the ball, Sarah throws it back to...

ulie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 12 m/s at an angle 47 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
1) What is the horizontal component of the ball’s velocity right
before Sarah catches it?
2)What is the vertical component of the ball’s velocity right
before Sarah catches it?
3)What is the time the...

Julie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 21 m/s at an angle 56 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
1)What is the horizontal component of the ball’s velocity right
before Sarah catches it?
2)What is the vertical component of the ball’s velocity right
before Sarah catches it?
3)What is the time the ball...

A person throws a ball at an initial angle θ0 = 45° from the
horizontal with an initial speed of v0
= 20 m⋅s-1. The point of release of the ball is at a height d =
2 m above the ground. You may neglect air resistance.
a) How long does it take the ball to reach the highest point of its
trajectory?
b) What was the maximum vertical displacement of the ball?
c) What was the distance of the...

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