Projectile motion is the motion of an object thrown (projected) into the air. After the initial force that launches the object, it only experiences the force of gravity. The object is called a projectile, and its path is called its trajectory.
What is the conclusion of projectile motion lab?
Conclusion: In conclusion, this lab allowed us to investigate projectile motion by determining the initial velocity given to the ball and ultimately predict the range of a projectile. Projectile Motion equations were used to predict the range in this projectile motion lab.
What is the purpose of the projectile motion lab?
The purpose of this experiment is to predict and verify the range and the time-of-flight of a projectile launched at an angle. To predict the range of the projectile when it is shot off a table at some angle above the horizontal, it is necessary first to determine the initial speed (muzzle velocity) of the ball.
What are the possible sources of error in projectile motion experiment?
The main source of error is likely to be the effect of air resistance, which is very difficult to account for theoretically at this level and is systematic in that it should decrease the range of all projectiles launched. Another source of error is likely to be the precision with which the projectile is aimed.
How do you find the initial velocity of a projectile?
To calculate the initial velocity, first JUST look at the vertical motion. Use the kinematic equations to determine the time. Then use this time in the horizontal motion. Again, calculate the uncertainty in the velocity.
How did changing the launch angle of a projectile affect its time of flight maximum height and range?
Higher launch angles have higher maximum height The maximum height is determined by the initial vertical velocity. Since steeper launch angles have a larger vertical velocity component, increasing the launch angle increases the maximum height.
What are the three types of projectile motion?
- Oblique projectile motion.
- Horizontal projectile motion.
- Projectile motion on an inclined plane.
What is the importance of projectile motion in sports?
Understanding how projectile motion works is very beneficial in determining how to best propel an object. For the javelin throw, being able to calculate the different variables helps the athlete to develop a better technique for them personally in order to throw the longest distance.
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.
What are the sources of error in physics lab?
Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Instrumental error happens when the instruments being used are inaccurate, such as a balance that does not work (SF Fig. 1.4).
What are sources of random error?
Sources of random errors natural variations in real world or experimental contexts. imprecise or unreliable measurement instruments. individual differences between participants or units. poorly controlled experimental procedures.
How does air resistance affect the acceleration of falling objects?
With air resistance, acceleration throughout a fall gets less than gravity (g) because air resistance affects the movement of the falling object by slowing it down. How much it slows the object down depends on the surface area of the object and its speed.
Which factor appears most important in projectile motion?
Take off Velocity. (This determines height and horizontal length of trajectory (range)). This is the single MOST IMPORTANT factor affecting the range of projectile.
Which best describes an object in projectile motion?
A projectile is any object that once projected or dropped continues in motion by its own inertia and is influenced only by the downward force of gravity. By definition, a projectile has a single force that acts upon it – the force of gravity.
What are the major components of a projectile motion?
There are the two components of the projectile’s motion – horizontal and vertical motion. And since perpendicular components of motion are independent of each other, these two components of motion can (and must) be discussed separately.
What are the factors affecting trajectory explain each?
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 shape of the trajectory of a projectile?
Objects experiencing projectile motion have a constant velocity in the horizontal direction, and a constantly changing velocity in the vertical direction. The trajectory resulting from this combination always has the shape of a parabola.
What is the range of a projectile motion?
The range of the projectile is the displacement in the horizontal direction. There is no acceleration in this direction since gravity only acts vertically. shows the line of range. Like time of flight and maximum height, the range of the projectile is a function of initial speed.
Why does mass not affect projectile motion?
When writing equations of motion for a dropped object, mass is in the equations in 2 places and they cancel out. That is basically the reason that mass does not affect the results of analysis of a projectile.
Which angle produces the greatest range?
A projectile, in other words, travels the farthest when it is launched at an angle of 45 degrees.
How does air resistance affect projectile motion?
As a projectile moves through the air it is slowed down by air resistance. Air resistance will decrease the horizontal component of a projectile. The effect of air resistance is very small, but needs to be considered if you want to increase the horizontal component of a projectile.
What is another name for projectile motion?
trajectory. Also found in: Dictionary, Medical, Encyclopedia, Wikipedia.
Why is horizontal velocity zero?
Suppose the particle in projectile motion reaches its highest point along the horizontal path. In that case, the horizontal velocity will usually be zero because as soon as it reaches the peak point, it is made to fall vertically downwards by the influence of the force of gravity.
Why is horizontal acceleration 0 for projectile motion?
Vertically, the setup is the same for projectile motion as it is for an object in free fall. Horizontally, gravity only pulls an object down, it never pulls or pushes an object horizontally, therefore the horizontal acceleration of any projectile is zero.
What are the important application of projectile motion?
The applications of projectile motion in physics and engineering are numerous. Some examples include meteors as they enter Earth’s atmosphere, fireworks, and the motion of any ball in sports. Such objects are called projectiles and their path is called a trajectory.