- #1
daveed
- 138
- 0
normal forces, at an angle
i was wondering, if we had a ladder propped up against frictionless wall and makes an angle theta with the ground, and the ground is frictionless too, what would be the magnitude of the normal forces from the ground and the floor, and how would you calculate the motion of the center of mass of the ladder? it makes a quarter-circle, but how long does it take? (does the center really accelerate down at 9.8m/s/s in this case?)
and, i think the normal forces might just be the sine of the angles that the ladder forms, but if this is so, why?
i was wondering, if we had a ladder propped up against frictionless wall and makes an angle theta with the ground, and the ground is frictionless too, what would be the magnitude of the normal forces from the ground and the floor, and how would you calculate the motion of the center of mass of the ladder? it makes a quarter-circle, but how long does it take? (does the center really accelerate down at 9.8m/s/s in this case?)
and, i think the normal forces might just be the sine of the angles that the ladder forms, but if this is so, why?