Asked by b
You drop a 2.3 kg textbook to a friend who stands on the ground 9 m below the textbook with outstretched hands 1.50 m above the ground.
What is the speed of the textbook when it reaches the hands?
What is the speed of the textbook when it reaches the hands?
Answers
Answered by
MathMate
Ignoring air resistance, use conservation of energy.
mg(H-h) = (1/2)mv²
solve for v.
mg(H-h) = (1/2)mv²
solve for v.
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