IJSO - 2011 Problem

Classical Mechanics Level 3

The world class Moses Mabhida football stadium situated in Durban has a symmetrical arc of length $350$ m and a height of $106$ m.

The picture above shows a funicular (Skycar), which takes tourists to the top of the arc. Suppose that the Skycar with tourists inside, starts from the base of the arc and travels a distance of $175$ m along the arc to the viewing platform at the top. Assume that the work done by friction during the Skycar’s complete ascent is $5.8 \times 10^{5}$ J. If the combined mass of the Skycar and tourists is $5000$ Kg, then the work done by the motor that lifts the Skycar is approximately equal to,

9.2 \times 10^{6}

4.6 \times 10^{6}

8.0 \times 10^{6}

5.8 \times 10^{6}

1 solution

Akshay Sant
Jul 13, 2014

Conservation of energy works.......!!!

Exactly :D

akash deep - 6 years ago

IJSO - 2011 Problem

1 solution

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