Answer:
The answer is 0.83 seconds.
Explanation:
The formula of free fall is following:
Where g=9.8 m/s^2 and t=2 seconds, the rock takes:
19.6 meters. This is the half distance of the cliff. The whole distance is 39.2 meters. So it takes:
2.83 second to fall down completely. The rock takes the second half of the cliff in 0.83 seconds
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If west means the west of the axis x the velocity equal :
Answer:
power drain on an ideal battery, P = 0.017 W
Given:
Since, and
are in parallel and this combination is in series with
, so,
Equivalent resistance of the circuit is given by:
power drain on an ideal battery, P =
P =
P = 0.017 W