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Formulas/physics/Kinematics

Kinematics

First Equation of Motion
→ Derivation
Final velocity in terms of initial velocity, uniform acceleration, and time.
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Uniform Motion
→ Derivation
Position of a body moving at constant velocity.
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Average Velocity
→ Derivation
Displacement per unit time over a finite interval.
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Second Equation of Motion
→ Derivation
Displacement in terms of initial velocity, acceleration, and time.
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Average Acceleration
→ Derivation
Change in velocity per unit time over a finite interval.
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Third Equation of Motion
→ Derivation
Relates final velocity to initial velocity, acceleration, and displacement.
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Time of Flight
→ Derivation
Total time a projectile remains in the air when launched from and landing on level ground.
Class 11Class JEE
Instantaneous Velocity
→ Derivation
Velocity at a specific instant — the derivative of position with respect to time.
Class 11Class JEE
Instantaneous Acceleration
→ Derivation
Acceleration at a specific instant — the derivative of velocity with respect to time.
Class 11Class JEE
Maximum Height of a Projectile
→ Derivation
Greatest vertical height reached by a projectile launched from level ground.
Class 11Class JEE
Range of a Projectile
→ Derivation
Horizontal range on level ground. Maximum range at θ = 45°.
Class 11Class JEE
Relative Velocity
→ Derivation
Velocity of A as observed from B.
Class 11Class JEE
Velocity Components of a Projectile
→ Derivation
Horizontal and vertical velocity components at any time t.
Class 11Class JEE
Speed of Projectile at Any Time
→ Derivation
Magnitude of velocity vector at any instant during projectile motion.
Class 11Class JEE
Angle of Velocity at Any Time
→ Derivation
Direction of velocity vector with respect to horizontal at any instant.
Class 11Class JEE
Position of Projectile at Any Time
→ Derivation
Horizontal and vertical coordinates of a projectile at time t.
Class 11Class JEE
Equation of Trajectory
→ Derivation
Path of a projectile — a downward-opening parabola.
Class 11Class JEE
Horizontal Projection — Time of Flight
→ Derivation
Time for a horizontally projected body to fall height h.
Class 11Class JEE
Horizontal Projection — Range
→ Derivation
Horizontal distance covered by a body projected horizontally from height h.
Class 11Class JEE
Horizontal Projection — Velocity at Any Time
→ Derivation
Speed of a horizontally projected body at time t.
Class 11Class JEE
Horizontal Projection — Trajectory
→ Derivation
Parabolic path of a horizontally projected body.
Class 11Class JEE
Projection at Angle from Height — Time of Flight
→ Derivation
Time of flight when projected at angle θ from height h above ground.
Class 11Class JEE
Projection at Angle from Height — Range
→ Derivation
Horizontal range when projected at angle θ from height h.
Class 11Class JEE
Projection at Angle from Height — Trajectory
→ Derivation
Equation of path when projected at angle θ from height h.
Class 11Class JEE
Projectile on Inclined Plane — Range Up the Plane
→ Derivation
Range along an inclined plane when projected up the slope. α = projection angle from horizontal, β = inclination angle.
Class JEE
Projectile on Inclined Plane — Range Down the Plane
→ Derivation
Range along an inclined plane when projected down the slope.
Class JEE
Projectile on Inclined Plane — Maximum Range
→ Derivation
Maximum range achievable on an inclined plane of angle β.
Class JEE
Projectile from a Moving Body
→ Derivation
Velocity of a projectile launched from a moving body — vector addition of body velocity and launch velocity.
Class 11Class JEE
Effect of Air Resistance on Projectile
→ Derivation
Air resistance reduces range, maximum height, and time of flight. Optimal angle shifts below 45°.
Class JEE