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Formula Sheet

Motion in a Plane — Formula Sheet

CBSE · Class 11 · Physics

18 formulas from Motion in a Plane (CBSE Class 11 Physics) on one page, grouped by topic. Part of the CBSE Class 11 Physics syllabus.

127 questions72 flashcards18 formulas & key relations5 concepts

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18 Entries · 5 Sections

Formulas and Key Relations

1. Basics: Scalars, Vectors, and Vector Rules

|λA| = λ|A| if λ > 0

A - A = 0, |0| = 0

A + 0 = A; λ0 = 0; 0A = 0

A - B = A + (-B)

2. Resolution of Vectors and Components

A_x = A cosθ, A_y = A sinθ

A = √(A_x² + A_y²); tanθ = A_y/A_x

A = A_x î + A_y ĵ

r = x î + y ĵ + z k̂

3. Vector Addition: Graphical and Analytical Methods

R = √(A² + B² + 2AB cosθ)

R/sinθ = A/sinβ = B/sinα

R_x = A_x + B_x; R_y = A_y + B_y

T_x = a_x + b_x - c_x; T_y = a_y + b_y - c_y; T_z = a_z + b_z - c_z

4. Motion in a Plane: Position, Velocity, and Acceleration

Δr = r' - r

v̄ = Δr/Δt

v = dr/dt

ā = Δv/Δt

a = dv/dt

Key relations

If A makes an angle θ with the x-axis, then Ax = A cosθ and Ay = A sinθ.

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Frequently Asked Questions

What are the important topics in Motion in a Plane for CBSE Class 11 Physics?
Key topics in Motion in a Plane include Scalars, Vectors, and Vector Algebra, Resolution and Addition of Vectors, Motion in a Plane with Constant Acceleration, Projectile Motion. Study these first, then practise questions on each for Class 11 exams.
How many formulas are in Motion in a Plane?
This sheet lists 18 formulas from Motion in a Plane, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Motion in a Plane for Class 11 exams?
Learn the core ideas first, then work through the 127 practice questions on Motion in a Plane. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Motion in a Plane

All CBSE Class 11 Physics Formula Sheet

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