-1.4 m- ! 0.50 m
You are pushing an
80.0 N wheelbarrow as shown in
Fig. You lift upward on the
handle of the wheelbarrow so that
the only point of contact between
the wheelbarrow and the ground
is at the front wheel. Assume the
distances are as shown in the figure,
where 0.50 m is the horizontal
distance from the center of the
wheel to the center of gravity of the
wheelbarrow. The center of gravity
of the dirt in the wheelbarrow is
assumed to also be a horizontal distance
of 0.50 m from the center of the
wheel. Estimate the maximum total
upward force that you can apply to the wheelbarrow handles. (a) If you
apply this estimated force, what is the maximum weight of dirt that you
can carry in the wheelbarrow? Express your answer in pounds. (b) If the
dirt has the weight you calculated in part (a), what upward force does the
ground apply to the wheel of the wheelbarrow?
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