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Title: A construction worker uses a board and log as a lever to lift a heavy rock. If the input arm is 5 ... Post by: zenmamma on Mar 24, 2023 A construction worker uses a board and log as a lever to lift a heavy rock. If the input arm is 5 meters long and the output arm is 2 meters long, what is the mechanical advantage of the lever?
a 7 b 0.4 c 10 d 2.5 Title: Re: A construction worker uses a board and log as a lever to lift a heavy rock. If the input arm is 5 ... Post by: dt6 on Mar 24, 2023 The mechanical advantage of the lever can be calculated by dividing the length of the input arm by the length of the output arm.
So, mechanical advantage = input arm length/output arm length = 5/2 = 2.5 Therefore, the answer is d) 2.5. |