- #1
waynexk8
- 398
- 1
Force, I just don't GET it ?
If we neglect the force needed to accelerate the weights. It takes the same force to maintain a constant speed on the bar, no matter what the speed is. If the weight is 200 pounds, then it takes exactly 200 pounds to maintain a constant speed of 3 ft/sec or 1 inch/sec, and everything in between.
The above seems to be true, but I just don’t GET it ?
Ok Two rockets going up or down or horizontal, air resistance at a constant speed, both are going at 5omph, the behind shunts the front rocket, and accelerates it up to 60mph, then keeps it there at a constant 60mph for a day, if the behind rocket backs of any of its constant force in that day, the front rocket will/must slow down,
Then accelerates it up to 70mph, and then keeps it there at a constant 70mph for another day. Then accelerates it up to 80mph, and then keeps it there at a constant 80mph for another day, and so on.
Thus the behind rocket, uses more forces, and more constant forces, the faster it accelerates the front rocket, and the more forces the more it shunts at a constant speed ?
Or what if the behind rocket just stopped pushing at any of the speeds, the behind rocket would immediately start to slow down.
How can the behind rocket use the same force to keep the front rocket
Or let us say we have a machine that can produce any accelerations and constant speeds, the machine needs to lift 200 pounds to 5omph and keep it at a constant 50mph for one day. Then accelerates it up to 60mph, and then keeps it there at a constant 60mph for another day. Then accelerates it up to 70mph, and then keeps it there at a constant 70mph for another day. Then accelerates it up to 80mph, and then keeps it there at a constant 80mph for another day, and so on.
Thus the behind rocket/machine, uses more forces, and more constant forces, the faster it accelerates the front rocket, and the more constant forces the more it shunts at a different constant speeds ?
Wayne
If we neglect the force needed to accelerate the weights. It takes the same force to maintain a constant speed on the bar, no matter what the speed is. If the weight is 200 pounds, then it takes exactly 200 pounds to maintain a constant speed of 3 ft/sec or 1 inch/sec, and everything in between.
The above seems to be true, but I just don’t GET it ?
Ok Two rockets going up or down or horizontal, air resistance at a constant speed, both are going at 5omph, the behind shunts the front rocket, and accelerates it up to 60mph, then keeps it there at a constant 60mph for a day, if the behind rocket backs of any of its constant force in that day, the front rocket will/must slow down,
Then accelerates it up to 70mph, and then keeps it there at a constant 70mph for another day. Then accelerates it up to 80mph, and then keeps it there at a constant 80mph for another day, and so on.
Thus the behind rocket, uses more forces, and more constant forces, the faster it accelerates the front rocket, and the more forces the more it shunts at a constant speed ?
Or what if the behind rocket just stopped pushing at any of the speeds, the behind rocket would immediately start to slow down.
How can the behind rocket use the same force to keep the front rocket
Or let us say we have a machine that can produce any accelerations and constant speeds, the machine needs to lift 200 pounds to 5omph and keep it at a constant 50mph for one day. Then accelerates it up to 60mph, and then keeps it there at a constant 60mph for another day. Then accelerates it up to 70mph, and then keeps it there at a constant 70mph for another day. Then accelerates it up to 80mph, and then keeps it there at a constant 80mph for another day, and so on.
Thus the behind rocket/machine, uses more forces, and more constant forces, the faster it accelerates the front rocket, and the more constant forces the more it shunts at a different constant speeds ?
Wayne