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dbenjamintheflash5
15.01.2020 •
Physics
Abumblebee is flying to the right when a breeze causes the bee to slow down with a constant acceleration of 0.50 m/s2 leftward. after 2.0s, the bee's speed is 2.75m/s to the right.
how fast was the bumblebee flying before the breeze?
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Ответ:
3.75 m/s
Explanation:
We can use equation of motion to solve this. Taking right to be positive,
Ответ:
Power = 21.6 Watts
Explanation:
Power =![\frac{W}{t}](/tpl/images/2172/5333/6b85d.png)
Where W = work and t = time.
W = Fs
Where F is force and s is displacement.
29.6N(5.9m) = 174.64J
W = 174.64J
Power =![\frac{174.64J}{8.1s}](/tpl/images/2172/5333/69dd5.png)
Power = 21.6 Watts