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zmey [24]
3 years ago
5

What is the mass of a falling rock if it produces a force of 147N?

Physics
1 answer:
Wittaler [7]3 years ago
7 0
15 killagrams i think
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3 years ago
during a crash, the acceleration was less than 30g. Calculate the force on a 70 kg person accelerating at this rate.
Igoryamba

Answer:

less than 20580 N

Explanation:

According to the newton's second law of motion

Force = mass * acceleration

(assuming gravitational acceleration =9.8 m/s2 )

acceleration = 30*9.8 = 294 m/s2

acting Force = 70 * 294

                     = 20580 N

Since the acceleration was less than 30g  , acting force should also be less than 20580 N

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3 years ago
In 2002, Colorado was suffering from extreme drought. Which technology will help Colorado reduce the effects of future droughts?
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A Dam on the other hand can contain and keep water in one given place. Which will save water, to be used to prevent future droughts.

Hope this helps!
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8 0
3 years ago
Read 2 more answers
Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Tom [10]

A2 = 16 m^2

Explanation:

Application of Pascal's law:

F1/A1 = F2/A2

Given:

F1 = 50 N. A1 = 1 m^2

F2 = 800 N A2 = ?

A2 = (F2/F1)A1 = (800 N/50 N)(1 m^2)

= 16 m^2

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3 years ago
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