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Anna71 [15]
2 years ago
8

A huge block of stone has a mass of 650kg and gains 70000j of gpe. how high has it been raised? (g = 10m/s2 )

Physics
1 answer:
Anna35 [415]2 years ago
5 0
The formula for calculating GPE is

GPE = m x h x g

Where m is mass, h is height raised and g is gravity.

To solve the problem we just have to substitute the values we are given

70,000J = 650 x 10 x y

70,000J = 6500 x y

70,000 / 6500 = y

10.769 = y

So, the block of stone has been raised approximately 10.769 metres.
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Answer:

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We have,

Initial velocity of an object is 10 m/s

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Explanation:

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This is the time of flight.

Consider the horizontal motion of ball,

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                      s=ucos\theta \times \frac{usin\theta }{g}+0.5\times 0\times (\frac{usin\theta }{g})^2\\\\s=\frac{u^2sin\theta cos\theta}{g}\\\\s=\frac{u^2sin2\theta}{2g}

This is the range.

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              g = 9.81 m/s²

              θ = 45° - For maximum range

Substituting

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Maximum horizontal distance traveled by ball without touching ground is 45.87 m, which is less than 95 m.

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