Question

A parked plane has a pe of 35456 j. If the plane is placed on a ramp that is 2.1m high to work on the wheels, what is the mass of the plane

Answer 1

Answer on Question 66881, Physics, Mechanics, Relativity

Question:

A parked plane has a PE of $35456\,J$. If the plane is placed on a ramp that is $2.1\,m$ high to work on the wheels, what is the mass of the plane?

Solution:

By the definition of the potential energy we have:

$$PE = mgh,$$ $$m = \frac{PE}{gh} = \frac{35456\,J}{9.8\, \frac{m}{s^2} \cdot 2.1\, m} = 1723\, kg.$$

Answer:

$$m = 1723\, kg.$$

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