Asked by Bran
A rock is thrown straight up into the air with an initial speed of 53 m/s at time
t = 0.
Ignore air resistance in this problem. At what times does it move with a speed of 40 m/s? Note: There are two answers to this problem.
earlier time:
later time:
t = 0.
Ignore air resistance in this problem. At what times does it move with a speed of 40 m/s? Note: There are two answers to this problem.
earlier time:
later time:
Answers
Answered by
oobleck
v = 53-9.8t
so find when v = ±40
so find when v = ±40
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