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HT pressure due to a column of liquid = height of column × density of liquid × gravitational field strength p=h ρg. distance travelled = speed × times=v t. acceleration = change in velocity time taken. a = Δv t. (final velocity)2– (initial velocity)2= 2 × acceleration × distancev2–u2= 2a s. resultant force = mass × accelerationF=m a.
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A force is a push or a pull that acts on an object due to the interaction with another object. Force is measured in newtons (N). Forces are divided into contact forces and non-contact forces.
According to the work-energy theorem, when a force acts upon a body while that body moves along the line of the force, the force does work upon the body, and the amount of work done is equal to the change in the body's kinetic energy.
- Constant Acceleration
- Velocity-Time
- Position-Time
- Velocity-Position
- Calculus Derivations
For the sake of accuracy, this section should be entitled "One dimensional equations of motion for constant acceleration". Given that such a title would be a stylistic nightmare, let me begin this section with the following qualification. These equations of motion are valid only when acceleration is constant and motion is constrained to a straight ...
The relation between velocity and time is a simple one during uniformly accelerated, straight-line motion. The longer the acceleration, the greater the change in velocity. Change in velocity is directly proportional to time when acceleration is constant. If velocity increases by a certain amount in a certain time, it should increase by twice that a...
The displacement of a moving object is directly proportional to both velocity and time. Move faster. Go farther. Move longer (as in longer time). Go farther. Acceleration compounds this simple situation since velocity is now also directly proportional to time. Try saying this in words and it sounds ridiculous. "Displacement is directly proportional...
The first two equations of motion each describe one kinematic variable as a function of time. In essence… 1. Velocity is directly proportional to time when acceleration is constant (v ∝ t). 2. Displacement is proportional to time squared when acceleration is constant (∆s ∝ t2). Combining these two statements gives rise to a third — one that is inde...
Calculus is an advanced math topic, but it makes deriving two of the three equations of motion much simpler. By definition, acceleration is the first derivative of velocity with respect to time. Take the operation in that definition and reverse it. Instead of differentiating velocity to find acceleration, integrate acceleration to find velocity. Th...
Mar 12, 2024 · Define net force, external force, and system. Understand Newton’s second law of motion. Apply Newton’s second law to determine the weight of an object.
A resultant force is the overall force that acts on the object. Remember that forces are vectors. When you calculate the resultant force you need to also say the direction it is acting in. You...
The variables include acceleration (a), time (t), displacement (d), final velocity (vf), and initial velocity (vi). If values of three variables are known, then the others can be calculated using the equations. This page describes how this can be done for situations involving free fall motion.
