A student of mass 65kg takes 10s to run up a flight of stairs of 40 steps. if each step is 12cm high . Calculate the potential energy of the student at the maximum height take gravity to be 10m/s square.

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

i need with 1.3.2 investigate cycling o2 and co2 apex

we need to see it

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