Four students are watching a motorcycle and a large truck at a red stoplight. When the light turns green, the motorcycle takes off with a great acceleration while the truck very slowly speeds up. Which is the best explanation for why the motorcycle could accelerate faster?

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

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