March 2004
Beginner
504 pages
9h 2m
English
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Chapter 10, “Motion in Two and Three Dimensions”
2D Displacement
Δr = rf – ri
for position vectors ri (initial) and rf (final).
Average Velocity in 2D and 3D
for any displacement vector Δr and time interval t.
Equations of Motion in 2D and 3D
vf = vi + at
Δx = ½(vf + vi)t
Δx = vit + ½at2
for vectors a, vf, vi, and Δx and scalar t.
Vertical Components of a Projectile
ay = –9.8m/s2
vfy = viy + at
Δy = viyt + ½ayt2
Horizontal Components of a Projectile
ax = 0m/s2
vx = Δx/t
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