Do projectiles have a predictable path? Projectile motion
Is projectile motion predictable?
The trajectory of an object undergoing projectile motion is predictable
. The object will follow a parabolic path that depends only on the initial conditions (launch angle and initial velocity) and acceleration due to gravity: Trajectories of projectiles with different initial conditions.
What kind of path does a projectile have?
All projectiles have
a “parabolic” flight path
. Trajectory = the flight path of a projectile. The trajectory of a projectile consists of a vertical and horizontal component.
Do projectiles always follow curved paths?
How do you predict projectile motion?
Time-of-flight and range: To predict the total time-of-flight, you can
use the vertical y- component of the initial velocity along with the initial and final y-coordinates of the ball
. To predict the range, you can use the total time-of-flight and the x-component of the initial velocity.
Why is a projectile path parabolic?
Projectile motion is parabolic
because the vertical position of the object is influenced only by a constant acceleration
, (if constant drag etc. is also assumed) and also because horizontal velocity is generally constant. is quadratic, and therefore describes a parabola.
What is not true about projectile motion?
FALSE – Many projectiles are moving from left to right and from right to left as they simultaneously free fall. Such projectiles have a horizontal motion. While a projectile can have a horizontal motion,
it cannot have a horizontal acceleration
.
What path does a projectile follow Why?
A projectile is any object that is projected by some means and continues in motion by its own inertia. Projectiles follow
curved paths that have horizontal and vertical components of motion
. Horizontal component of motion is completely independent of the vertical component of motion.
What determines the path that an object in projectile motion follows?
A projectile is an object in motion from space that enters the earth’s atmosphere. When it gets to the earth it is pulled by the force of earth’s gravity. As it enters earth’s atmosphere
its inertia
determines its path.
Why do projectiles form a curved path?
Students have long been taught that all projectiles follow a curved path known as a parabola. The explanation is that
as they fly, they cover distance both horizontally and vertically – but only the latter is affected by the force of gravity, which bends the path of the projectile into a parabola
.
Can we predict the motion of a moving object?
Newton’s second law of motion says that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass.
You can use it to predict the motion of an object
. The net force is the vector sum of all the forces that act on the object.
Which of the following is the essential characteristics of a projectile?
Answer: b)
Constant acceleration perpendicular to the velocoty
.
How do you predict where a projectile will land?
This can be determined by
launching the ball horizontally off the table and measuring the vertical and horizontal distances through which the ball travels
. Then the initial velocity can be used to calculate where the ball will land when the ball is shot at an angle. Air friction is assumed to be negligible.
How do you predict where a ball will land?
How do you find the predicted range?
Step 2: Identify the angle at which a projectile is launched. The projectile is launched at the angle of θ=30∘ θ = 30 ∘ . Step 3: Find the range of a projectile by substituting the initial velocity and the angle found in steps 1 and 2 into the equation
R=v20gsin2θ R = v 0 2 g sin
.
Is a projectile motion parabolic?
A projectile’s motion is parabolic because it is affected by gravity
. Gravity causes the projectile to fall in a curved path, rather than a straight line. The equation for projectile motion takes into account the force of gravity, which is why the path of a projectile is always a parabola.
Is projectile motion parabolic or elliptical?
Relative to the reference system of the earth’s gravitational center the projectile’s path is
neither an ellipse nor a parabola
. (E.g. a gun bullet shot west may have almost no velocity in the direction of the actual shot and move only vertically towards the earth’s center, at certain latitudes).
Is every trajectory a parabola?
No, most trajectories are ellipses
. If an object has less than escape velocity, it is an ellipse. If the object just has escape velocity, it has a parabolic trajectory.
Which of the following describes a projectile motion?
Which of the following statements is true of the horizontal motion of projectiles?
The final horizontal velocity of a projectile is always equal to the initial horizontal velocity
.
Which of these doesn’t change when a projectile is fired?
The
horizontal velocity
of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.
What 3 things does projectile motion depend on?
FACTORS AFFECTING PROJECTILE MOTION
There are three main factors that affect the trajectory of an object or body in flight:
the projection angle, magnitude of projection velocity and height of projection
.
What is the properties of projectile motion?
Can you explain projectile motion?
Projectile motion is
a form of motion experienced by an object or particle (a projectile) that is projected near Earth’s surface and moves along a curved path under the action of gravity only
(in particular, the effects of air resistance are passive and assumed to be negligible).
What determines the path that an object in projectile motion follows ignore air resistance quizlet?
Gravity
pulls objects in projectile motion down at an acceleration of 9.8 m/s/s (if air resistance is ignored).
Which of the following is true regarding projectile motion?
Answer: The true statement is
horizontal velocity of the projectile is constant
.
What is predictable motion?
Predicting Motion: Patterns of motion can be used to make predictions.
If we know the pattern that a moving object is following, we can make predictions about where it will be in the future
. For example, when you jump rope you are using the pattern to predict when to jump.
What are a few predictable patterns of motion?
Motion can be straight (like an arrow being shot at a target), circular (like a merry-go-round), up and down (like a pogo stick), zig-zag (like skiing), side-to- side (like dancing).
How can one predict an object’s continued motion changes in motion or stability?
What is not true about projectile motion?
Can we predict the motion of a moving object?
Newton’s second law of motion says that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass.
You can use it to predict the motion of an object
. The net force is the vector sum of all the forces that act on the object.
What 3 things does projectile motion depend on?
What are the 3 main concepts of projectile motion?
Key Points:
Range, Symmetry, Maximum Height
. Projectile motion is a form of motion where an object moves in parabolic path. The path that the object follows is called its trajectory.
