What Are the 4 Kinematic Equations Used in Physics?
Learn the 4 essential kinematic equations for motion with constant acceleration, including velocity, displacement, and time formulas.
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The 4 kinematic equations are essential for solving physics problems involving motion under constant acceleration. They are: 1. v = u + at (Final velocity = initial velocity + acceleration × time) 2. s = ut + 1/2 at^2 (Displacement = initial velocity × time + 1/2 × acceleration × time^2) 3. v^2 = u^2 + 2as (Final velocity squared = initial velocity squared + 2 × acceleration × displacement) 4. s = vt - 1/2 at^2 (Displacement = final velocity × time - 1/2 × acceleration × time^2) Note: v is final velocity, u is initial velocity, a is acceleration, t is time, and s is displacement.
FAQs & Answers
- What is the purpose of the 4 kinematic equations? The 4 kinematic equations help solve problems involving the motion of objects under constant acceleration by relating velocity, displacement, acceleration, and time.
- When can I use the 4 kinematic equations? You can use these equations when the acceleration is constant and the motion is in a straight line, such as free-fall or uniformly accelerated motion.
- What do the variables u, v, a, t, and s represent in kinematic equations? In kinematic equations, u is initial velocity, v is final velocity, a is acceleration, t is time, and s is displacement.