newtons 2nd law ramp experiments a science with bobert video short

iii) Dr. Smith has an empty soda can and a full soda can. He is putting them both at the top of a ramp and is going to let go of them at the same time. what do you predict will happen? (a) the full soda can will have the largest acceleration and reach the bottom of the ramp first (b) the empty soda can will have the largest acceleration and reach the bottom of the ramp first (c) both cans will have the same acceleration and will reach the bottom of the ramp at the same time Did you get it right? This time Dr. Smith has 3 solid steel balls: a small one, a medium sized one, and a large one placed at the top of the ramp. What do you predict will happen? (a) the largest steel ball will reach the bottom of the ramp first (b) the smallest steel ball will reach the bottom of the ramp first (c) the steel balls will all reach the bottom of the ramp at the same time We can see that acceleration is definitely present in these ramp experiments for all the objects rolled down the ramp. So that means with each object there is an unbalanced or overall net force. Do you know what that force is? The force accelerating each object down the ramp is the object’s weight. Weight is a force and that is why the heaviest soda can or the heaviest steel ball always won the race of rolling down the ramp!