You need a wide platform to get your work done. What should you do?Use a scaffold, aerial lift, or platform ladderStraddle the ladderPut two ladders side-by-side and stand with one foot on each ladderUse three ladders to mimic a scaffold

.When there isn’t firm support for all four feet of a step ladder, but there is a sturdy top support available, you could use a single ladder.TrueFalse

You should always choose an extension ladder, even if a fixed ladder is present and in good condition.TrueFalse

Which of the following is a good substitution to use in place of ladder? Choose all that apply.Boom liftScissor liftScaffold

You need to raise a boulder 2.00 m vertically. Assuming you use a massless rope, which method will result in you doing more work? By pulling the boulder 2.00 m straight upwards at a constant speed. By pulling the boulder along a 12.0° frictionless ramp at a constant speed until it reaches a height of 2.00 m. Both methods have the same amount of work

Mr. Peterson is leaning a ladder against the side of his house to repair the roof. The top of the ladder reaches the roof, which is 6 meters high. The base of the ladder is 5 meters away from the house, where Mr. Peterson's son is holding it steady. How long is the ladder? If necessary, round to the nearest tenth.