- #Physics freefall equations for free
- #Physics freefall equations plus
- #Physics freefall equations free
The first thing we need to do is to identify what we’re given and what we’re ask for. How long does it take for the rock to reach its maximum height? In this problem, we’re told that:Ī rock is thrown upward and reaches a height of 6 meters.
#Physics freefall equations free
We’ll look at this in a more detail when we talk about Projectile Motion but now let’s try a simple free fall problem. So the speed of which the object is going upward is gonna slow down slow down and it’ll comes to a complete stop and then it will change direction and the Velocity will be downward in addition to the Gravity so it will go from no speed at the top going faster, faster and faster until it hits the ground. So picture this, you throw something up with the initial velocity and then as it’s going higher and higher gravity is going to push it down and down.
The initial Velocity for something thrown up is positive but the gravity which is slowing it down and the downward direction is going to be negative.Īnd one thing to keep in mind, because Velocity and Gravity are working against each other, V final which is going to be V at the top is equal to zero. Or you can have something being thrown upward. You can have something falling downwards and then your Velocity and Acceleration of Gravity or both from the same direction. We switch the x to a y, we put negative and swap the a for a g.įree Fall questions will show up in one or two ways.
#Physics freefall equations plus
And finally the last one is delta x is equal to V intial t plus one over two a t squared. We wanna swap the X for a Y, a for g and then put a negative for the direction of gravity. The second one is V final squared is equal to V initial squared plus two a delta X. We wanna swap out the a for g and since gravity is down, we change gt plus to minus because negative implies a negative or downward direction. The first is V final is equal to V initial plus at (Vf=Vi + at).
#Physics freefall equations for free
The three equations to consider for Free Fall have acceleration in them. Gravity’s 9.8m/s2 but on the MCAT you can simplify and we’ll use 10 meters per second squared (10m/s^2) with the negative (-) to imply that the direction is downward. When dealing with Free Fall, we use the standard Kinematic equations.īut realize that anytime X shows up, you want to use Y and anytime Accelerations (a) shows up, you want to use the acceleration of gravity or simply g for gravity. Leah here from /MCAT and in this video we’ll talk about Free Fall as it’ll show up on your MCAT in a Kinematics question.įree fall as the name implies is when something falls under its own acceleration, meaning you don’t have an outside force that causes it to accelerate in any direction other than straight down. Below is the transcript of my tutorial video on MCAT Physics Video 7 – Free Fall in Translational Motion
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