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labwork [276]
2 years ago
15

A piano of mass 852 kg is lifted to a height of 3.5 m. How much gravitational potential energy is added to the piano? Accelerati

on due to gravity is g = 9.8 m/s2 O A. 102,282 J O B. 29,224J O C. 2982 J O D. 304.3J SUSM​
Physics
1 answer:
slega [8]2 years ago
6 0

Answer:

29223.6J

Explanation:

Given parameters:

Mass of Piano = 852kg

Height of lifting  = 3.5m

Unknown:

Gravitational potential energy  = ?

Solution:

The gravitational potential energy of a body can be expressed as the energy due to the position of a body;

  G.P.E  = mgh

m is the mass

g is the acceleration due to gravity

h is the height

 Now insert the given parameters and solve;

   G.P.E  = 852 x 9.8 x 3.5 = 29223.6J

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Answer:

Part a)

f = \frac{8}{9}

Part b)

f = \frac{120}{169}

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So from above discussion we have the result that energy loss will be more if the collision occurs with animal with more mass

Explanation:

Part a)

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So here we can use momentum conservation

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also by elastic collision condition we know that

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Part b)

Let say the collision between Camel and the car is elastic collision

So here we can use momentum conservation

m_1v_{1i} = m_1v_{1f} + m_2v_{2f}

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f = \frac{120}{169}

Part c)

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