Recent content by MaggieNF

that is perfect.. i get it now.. thank you so so much :D

ok... got it but does it matter that i don't actually have the mass?

momentum is mass multiplied by the velocity.. there would be no momentum if its at rest, and 3.25 multiplied by the mass when it breaks free?

nope.. I'm hopeless

I'm afraid i don't. I'm new to physics and just need to pass it for an exam so i don't have much of a grasp of it

Homework Statement A train is traveling at 3.73 degree incline at a speed of 3.25 m/s, when the last car breaks free and begins to coast without friction. (i) How long does it take for the last car to come to rest momentarily? (ii) How far did the last car travel before (momentarily)...

Homework Statement Jill of the jungle swings on a vine 6.9 m long (assume no friction) what is the tension in the vine if jill, whose mass is 65 kg, is moving at 2.4m/s when the vine is vertical? Draw a free body diagram Assume Jill stops holding on at exactly the moment the vine is...