Recent content by vietknight

I believe this is not possible to jump off the the block to slow yourself down because even if you are holding on to them before you jump off, you will eventually have to release before you push up, otherwise you wouldn't achieve your maximum push upwards. Nevertheless, pushing on air...that's...

Nevermind, I found the answer, mass is negliable because it doesn't affect the falling speed of the object. All things fall at the same rate due to the constant gravity. Just like, if you have a frictionless ramp, there is nothing opposing the object from rolling down it, hence its similar to an...

With what minimum speed must a high jumper leave the ground to raise his center of mass by 2.10m and cross the bar with a speed of 0.8m/s? For this question, I'm not sure how to proceed, and if its surely the correct way to do so but here's what I've done. Since the jumper is crossing the...