what is the difference between freefall and projectile motion?
480056
Free fall can only occur under gravity, but projectile motion can occur under any force field. ... Free fall cannot occur in situations where the air resistance is present; the object will come to a terminal velocity, but projectile motion can occur in such situations.
1066502
On Earth, all free-falling objects have an acceleration g due to gravity, which averages g=9.81m/s2 g = 9.81 m/s 2 . For objects in free fall, the upward direction is normally taken as positive for displacement, velocity, and acceleration.
382548
Answer and Explanation: The difference between momentum and velocity is that momentum is a measure of the amount of motion in an object, and velocity is a measure of an...
657030
A fall or topple happens when rocks and other sediments fall through the air and land at the bottom of a slope. Flows are a mixture of water, rock and sediment. ... A slide happens when a section of soil or rock suddenly gives way and moves down a slope.
1111379
Linear motion involves an object moving in a straight line in one dimension, like a car driving on a perfectly straight road, while projectile motion involves two dimensions, like a cannonball firing. ... Circular motion is different from other forms of motion because the speed of the object is constant.
306367
Target response: Both objects fall at the same speed. Mass does not affect the speed of falling objects, assuming there is only gravity acting on it. ... The horizontal force applied does not affect the downward motion of the bullets -- only gravity and friction (air resistance), which is the same for both bullets.
1371486
a falling object is in free fall if the only force acting on it is gravity. weightlessness occurs in the free fall when the weight of an object seems to be zero. when actions and reaction forces are exerted by two objects, the acceleration of the objects depend on the masses of the objects.
1409113
A fall or topple happens when rocks and other sediments fall through the air and land at the bottom of a slope. Flows are a mixture of water, rock and sediment. They move very quickly. ... A slide happens when a section of soil or rock suddenly gives way and moves down a slope.
904080
An object, usually a metal ball for which air resistance is negligible, is dropped and the time it takes to fall a known distance is measured. ... Velocity is seen to increase linearly with time while displacement increases with time squared. Acceleration is a constant and is equal to gravitational acceleration.
594480
Objects that are said to be undergoing free fall, are not encountering a significant force of air resistance; they are falling under the sole influence of gravity. Under such conditions, all objects will fall with the same rate of acceleration, regardless of their mass.
1342071
It is also true that a free falling (no air resistance) object falls with an acceleration of 9.8 m/s2—but it's still just the gravitational field. It doesn't matter what object you put near the surface of the Earth, the gravitational field due to the Earth is constant and pointing towards the center of the Earth.
72007
To find the time of flight, determine the time the projectile takes to reach maximum height. The time of flight is just double the maximum-height time. At maximum height, vy = 0. The time of flight is also determined solely by the initial velocity in the y direction and the acceleration due to gravity.
5618
The acceleration due to gravity is ALWAYS negative. Any object affected only by gravity (a projectile or an object in free fall) has an acceleration of -9.81 m/s2, regardless of the direction. The acceleration is negative when going up because the speed is decreasing.
1017321
When you throw a ball upwards, at some point, it completely stops and then the very next instant, it starts to fall down. Even though it stopped, i.e the velocity is zero, the acceleration would be the acceleration due to gravity, 9.8 m/s.
1049492
At a projectile's highest point, its acceleration is zero. The rate of change of the \begin{align*}x\end{align*} position is changing with time along the projectile path. The rate of change of the \begin{align*}y\end{align*} position is changing with time along the projectile path.
66790
It was learned in the previous part of this lesson that a free-falling object is an object that is falling under the sole influence of gravity. A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth).
1134892
Free fall means that an object is falling freely with no forces acting upon it except gravity, a defined constant, g = -9.8 m/s2. The distance the object falls, or height, h, is 1/2 gravity x the square of the time falling. Velocity is defined as gravity x time.