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What is acceleration? Acceleration and velocity. Effect of acceleration (1D) Worked example: Effects of acceleration. Direction of acceleration and velocity in 1D.
Course: Physics archive > Unit 5. Lesson 3: Center of mass. Equation for center of mass. What is center of mass?
A fourth equation can be useful when acceleration is known to be constant, but its value is unknown. This equation can be derived by combining two equations for average velocity. Average velocity is defined as displacement divided by the time during which that displacement occurred: v a v g = x − x 0 t.
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Calculating average velocity or speed. Although speed and velocity are often words used interchangeably, in physics, they are distinct concepts. Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity ...
Course: Physics archive > Unit 2. Lesson 3: Inclined planes and friction. Inclined plane force components. Ice accelerating down an incline. Force of friction keeping the block stationary. Correction to force of friction keeping the block stationary. Force of friction keeping velocity constant. Intuition on static and kinetic friction comparisons.
V= instantaneous velocity; Since acceleration and velocity are in the same equation, then the velocity is changing (accelerating) over time, so it would only make sense to pluck in the velocity of a specific time.
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Explanation of power in physics, including concepts and calculations.