Physics Equations Exam Questions with Complete Solutions

Displacement (d) - ANSWER-d = Δx = final position - initial positon = net distance (plus direction) Average velocity (v) - ANSWER-v = Δx/Δt = d/Δt Average acceleration (a) - ANSWER-a = Δv/Δt What assumption do we make with the BIG 5 equations? What are the 3 most frequently used equations? - ANSWER-That acceleration is constant (uniformly accelerated motion) 2. Missing d 3. Missing vf (v final, v) 5. Missing t BIG 5: 1. Missing a - ANSWER-d = ½(v₀ + v)t BIG 5: 2. Missing d - ANSWER-v = v₀ + at BIG 5: 3. Missing v (v final) - ANSWER-d = v₀²t + ½at² BIG 5: 4. Missing v₀ - ANSWER-d = vt - ½at² BIG 5: 5. Missing t - ANSWER-v² = v₀² + 2ad For projection motion, we assume that the downward direction is... - ANSWER-NEGATIVE direction. DOWNWARD = NEGATIVE DIRECTION. PROJECTILE MOTION - Horizontal Motion