chrisandthemike76
30.09.2019 •
Physics
Acar starts from rest and accelerates to 45.0 m/s in 15 seconds, after which it travels at a constant speed for 1.0 minute, and then comes to rest in 30 seconds. calculate the acceleration of the car during the first 15 seconds.
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Ответ:
3m/s^2
Explanation:
Plot a speed time graph to see it better
basically
acceleration = Final velocity- initial velocity/time (s)
Ответ:
(A)energy lost in the lever due to friction
(C) visual estimation of height of the beanbag
(E)position of the fulcrum for the lever affecting transfer of energy