Physics, 10.10.2020 14:01 soleydyperez
A ball is shot vertically into the air. At its highest point,
a. its velocity is -10 m/s and its acceleration is -10 m/s/s.
b. its velocity is 0 m/s and its acceleration is -10 m/s/s.
c. its velocity is -10 m/s and its acceleration 0 m/s/s.
d. its velocity is 0 m/s and its acceleration is 0 m/s/s.
Answers: 2
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Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)
Answers: 1
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After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?
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A ball is shot vertically into the air. At its highest point,
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