. 30
• A l-m pry bar is held horizontally and used to open a crate. The tip of the
bar,...
Physics, 10.02.2020 05:42 ny01282005
. 30
• A l-m pry bar is held horizontally and used to open a crate. The tip of the
bar, which serves as the fulcrum, is pushed in a distance of 2 cm between
the crate lid and the crate. If a 20-N force is applied perpendicularly to the
end of the bar, what force is applied on the crate lid?
(A) IN
(B) 100 N
(C) 10 N
(D) 1,000 N
(E) 10,000 N
Answers: 2
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Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?
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