Recent content by gavrir

Homework Statement Hey guys i was taking some practice excercises and was wondering if someone could give me the answers to the following: 1.The following questions are about this experiment in which a test-mass moves in a horizontal circle at constant speed. What is the direction of the...

I know the answers for 3,4,5 are c,a and b b ut i don't understand the first 2..Thanks

Hey guys i was taking some practice excercises and was wondering if someone could give me the answers to the following: 1.The following questions are about this experiment in which a test-mass moves in a horizontal circle at constant speed. What is the direction of the test-mass...

sorry wrong choices i meant B and D

ok i think i got it now C and D?

o0oh the normal force and the force due to gravity, but since the motion is horizontal i thought those didnt matter...so I am guessing the answer is b and d which are friction and normal/gravity

well the surface is considered frictionless but that's impossible right? there has to be some friction and the other is the applied force right?

is it b and c?

actually the answer is all of them isn't it?

so then it is A. Their magnitudes differ by the magnitude of the net force on the bumper. B. The force of friction is small. A and B correct?

Well I have not done the lab yet, and these are practice pre-lab questions. But usually the force sensor is attactched to the end of the cart which is on a "frictionless" surface. It is an impulse and momentum lab and i believe that the bumber is on the end of the meterstick.

Hey guys this is a practice problem for my lab and i can't get it can someone please help: The force sensor measures the force on the sensor due to the bumper, but the cart's momentum change arises from the force on the cart due to the bumper. Which of the following facts are needed to assert...