An elephant (mass = 5 tonne) takes tourists to a hill resort 0.4 km above the ground level. The elephant Carries a 2000kg load of tourists and luggage and takes 60 minutes. Calculate the i. Work done by the elephant ii. Potential energy gained by the tourists and luggage iii. Efficiency the operation iv. Power of the elephant in horsepower
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i)
ii)
iv)
Explanation:
Given:
- mass of elephant,
- displacement climbed by the elephant,
- mass of tourist and luggage,
- time taken to climb,
i)
work done by the elephant:
ii)
Potential gained by the tourist and the luggage:
iv)
Power of the elephant:
iii)
The efficiency of an inclined plane is given as:
where:
IMA = ideal mechanical advantage
AMA = actual mechanical advantage
IMA is calculated by:
where:
inclined length of the slope
final height of the inclination at the end of the slope.
AMA is calculated by:
Actual mechanical advantage is the ratio of the force applied for without the use of inclined plane to the force applied using inclined plane.
Here we are not given with the required data for calculation.
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TOPIC: inclined plane
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