Two 37.0-lbm twins are playing in their backyard. One toddler is running full speed at 5.5 mph and his path will take him directly into a brick wall. His sister has climbed a 3.5-ft ladder and is perched precariously atop it. Calculate the kinetic and potential energies of the two twins with respect to their stationary destinations (the wall and the ground). Boy Girl i i KE (lbf.ft) i i PE (lbf.ft) If potential energy is completely converted to kinetic energy during the girl's fall, how fast will she be travelling upon impact?
Two 37.0-lbm twins are playing in their backyard. One toddler is running full speed at 5.5 mph and his path will take him directly into a brick wall. His sister has climbed a 3.5-ft ladder and is perched precariously atop it. Calculate the kinetic and potential energies of the two twins with respect to their stationary destinations (the wall and the ground). Boy Girl i i KE (lbf.ft) i i PE (lbf.ft) If potential energy is completely converted to kinetic energy during the girl's fall, how fast will she be travelling upon impact?
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Transcribed Image Text:Two 37.0-lbm twins are playing in their backyard. One toddler is running full speed at 5.5 mph and his path will take him directly into a
brick wall. His sister has climbed a 3.5-ft ladder and is perched precariously atop it.
Calculate the kinetic and potential energies of the two twins with respect to their stationary destinations (the wall and the ground).
Boy
Girl
i
KE
(lbf.ft)
PE
(lbf.ft)
If potential energy is completely converted to kinetic energy during the girl's fall, how fast will she be travelling upon impact?
mph
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