Acceleration of Plank & Sphere with Constant Force F on Masses m1 & m2

AI Thread Summary
A plank with mass m1 and a sphere of mass m2 on it is subjected to a constant horizontal force F while resting on a smooth floor. The problem focuses on determining the accelerations of both the plank and the sphere, assuming no sliding occurs between them. The sphere will roll, necessitating the use of Newton's second law or the work-energy theorem to analyze the system. The discussion emphasizes the need to define displacements for both the plank and the sphere to solve the problem effectively. Overall, the key challenge is to calculate the accelerations with respect to the ground under the given conditions.
sachin123
Messages
117
Reaction score
0
A plank of mass m1 with a uniform mass m2 placed on it rests on a smooth horizontal floor.A constant horizontal force F is applied to the plank.With what accelerations will plank and center of sphere move if there is no sliding between plank and sphere?(with respect to ground)
 
Physics news on Phys.org
Attempt at solution?
 
I have no clue
 
sachin123 said:
A plank of mass m1 with a uniform mass m2 placed on it rests on a smooth horizontal floor.A constant horizontal force F is applied to the plank.With what accelerations will plank and center of sphere move if there is no sliding between plank and sphere?(with respect to ground)

(I assume the mass m2 is the sphere?)

The sphere will roll, so give letters to the displacement of the plank and the angular displacement of the sphere, and either use Newton's second law or use work done and the work-energy theorem.

Show us how far you get.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top