90 km/h : 3.6 = 25 m/s. If you know that on earth g = 9.81 m/s^2, then all you have to do is divide the speed by g. 25/9.81 = 2.548 seconds
At least, if by 'gently rolls off a vertical cliff' means that your starting velocity equals zero.
Explanation:
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The answer is 
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Thus, the average flow rate is
.
What is average flow rate?
- Average flow, which is often represented in cubic feet per second, refers to the stream's average discharge at a certain location.
- The flowrate is the rate at which liquid travels through a pipe or into a wellbore from a reservoir.
- The volume of fluid that moves across a specific cross-sectional area per unit of time is known as the flow rate.
- It is essential to measure flow rates accurately using the right flowmeters to guarantee that fluid management procedures are efficient, safe, and cost-effective.
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The sun is 1.989E30 kg. <em>It's radius is 695, 800 Km.</em>