A baseball player hits a foul ball straight up into the air. it leaves the back with the speed of 120 km/h in the absence of air resistance, how fast will the ball be moving when the catcher catches it?

i think it's 35 meters

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it