Motion

🎯 Class Objective:

Relates Uniform Rectilinear Motion to motion with variable velocity, applies the equations of uniformly accelerated motion, and creates analogies between equations, graphs, and real-life situations to explain and predict motion behavior.

🚗 Motion – URM – MUA – Free Fall – Graphs

A. Uniform Rectilinear Motion (URM)

1. A car moves at 20 m/s for 15 s.
   Find distance traveled.
   
   

2. A body travels 150 m in 10 s.
   Find velocity.
   
   

3. From a position–time graph with constant positive slope:
   Describe the motion.
   
   

B. Uniformly Accelerated Motion (MUA)

1. A car starts from rest with acceleration 2 m/s² for 8 s.
   Find:
   
   

a) Final velocity
b) Displacement

2. A body moves at 15 m/s and stops in 3 s.
   Find acceleration.
   
   

3. Compare URM and MUA graphs:
   How does slope differ?
   
   

C. Graph Interpretation

Given:

Position–time graph is a parabola opening upward.

1. What type of motion is it?
   
   

2. Is acceleration positive or negative?
   
   

3. What does curvature indicate?
   
   

Given:

Velocity–time graph is a straight line with negative slope.

1. What does slope represent?
   
   

2. What does area under the curve represent?
   
   

3. Is motion accelerating or decelerating?
   
   

D. Free Fall

1. An object is dropped from rest.
   Find velocity after 3 s.
   
   

2. How long does it take to fall 45 m?
   
   

3. Compare free fall equations with MUA equations.
   What changes?