Fill in the boxes and use a calculator to determine how long it would take each machine to travel 60 miles (in minutes). Use the
speeds you previously calculated in miles per hour for each machine. Round answers to the nearest tenth (one decimal place). NASCAR car = Thrust SSC car = TGV Train = Spirit of Australia Boat = Lockheed SR71 Airplane =
1 answer:
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Answer:
W = 2352 J
Explanation:
Given that:
- mass of the bucket, M = 10 kg
- velocity of pulling the bucket, v = 3
- height of the platform, h = 30 m
- time taken, t = 10 min
- rate of loss of water-mass, m =
Here, according to the given situation the bucket moves at the rate,
The mass varies with the time as,
Consider the time interval between t and t + ∆t. During this time the bucket moves a distance
∆x = 3∆t meters
So, during this interval change in work done,
∆W = m.g∆x
<u>For work calculation:</u>