Question

6 A tractor of weight 15,000 N crosses a single
span bridge of weight 8000N and of length
21.0 m. The bridge span is supported half a
metre from either end. The tractor's front wheels
take 1/3 of the total weight of the tractor, and the
rear wheels are 3m behind the front wheels.
Calculate the force on the bridge supports when
the rear wheels are at the middle of the bridge
span.​

Answer 1

Answer:

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Answer 2

Answer:

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