The elevator going up/down
89442
"Train approaching"
79283
Internal forces in an isolated system
141291
Time of a ball going up and down with air resistance
43961
Work done against gravity
47084
Number of times the ball bounces back when dropped from a building of height h
65517
Vertical component of moving weight at a 45 degree angle
124996
IOS - multiple images going slowly upward animation
91146
Helping someone climb
26335
How exactly do objects move
147569
Algebraic Property inherited by a "lift"?
19442
Frictional forces opposing motion
96638
Tension in the string of a pulley
6401
Physics definition of work and lifting
108262
Man on a rope task
110616
Acceleration due to Gravity: Free Fall
68381
Elongation in bar with unequal applied forces
25333
d with a little line through the top of it