Swings are usually made out of materials that do not conduct heat easily, so that children will not burn themselves as they play
during the summer
Given this information, which of these materials would be good for making swings?
A. plastic
B. wood
C. rubber
D. all of these

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

not too sure thinking all accelerations are pointed down

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle