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Help with physics theory question? ?
If initial speed in the vertical direction is 36m/sec upward and the acceleration due to gravity is 10m/s each second downward, the vertical speed of arrow after 6 seconds is 24 m/sec downward.
I do not understand how the vertical speed can be 24 m/sec after 6 seconds.
2 Answers
- ?Lv 78 months agoFavorite Answer
v = at + v₀ is the basic formula you need to know
v = -10*6 + 36 where the -10 means accelerating down.
v = -60 + 36 = -24 m/s
- means downward, velocity is a vector and needs a direction.
- ?Lv 78 months ago
at the time t = 6 the arrow is going down
assume upward is positive
initial velocity u = 36 m/s
at t=6 , velocity v=-24 m/s