You are out and about in the country and your father sees a rock that he really wants in the yard. Now you must get the very heavy rock into the back of a truck. The truck bed is 3 feet off the ground. Your father pulls out a 5-foot plank and begins to set up a ramp. At the same time, you have found a plank that is 8 feet long, and you show it to your father.
2. Calculate the MA for each plank.
show your working out.
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You are out and about in the country and your father sees a rock that he really wants in the yard. N...
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