8. And a ladder problem, a 32 foot ladder is place up against a wall. The base is 21 feet out from the wall. The ladder weighs 62 pounds and I weigh 150 pounds. When I am 3 feet down the ladder from the top, what is the Us I need from ground to not have it slide out on me? Us=

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A: Hey dear I have write the answer . Have a look

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!