Question

In: Physics

A cockroach starts walking with constant speed v , radially outwards from the center of a disc that's flat and horizontal.

 

A cockroach starts walking with constant speed v , radially outwards from the center of a disc that's flat and horizontal. The disc rotates with angular speed OMEGA constant , relative to the vertical axis passing through its centre. Using the equations of the movement in non-inertial coordinate systems compute,

a- identify in one or more diagrams all the forces acting on the insect
b- if the coefficient of friction between the insect and the disc is MU ,
how far can the insect walk, before it starts to slip?

 

Solutions

Expert Solution


Related Solutions

A block of mass 4m moves on a flat horizontal surface at speed v, and strikes...
A block of mass 4m moves on a flat horizontal surface at speed v, and strikes another block of mass m, that is attached via a horizontal spring to another block of mass 2m. The two masses are stationary.  The spring constant is k. All collisions are completely inelastic and there is no friction anywhere. What is the velocity of the center of mass when the spring is ¼ the way to max compression.
As your bus rounds a flat curve at constant speed, a package with mass 0.300kg ,...
As your bus rounds a flat curve at constant speed, a package with mass 0.300kg , suspended from the luggage compartment of the bus by a string 50.0cm long, is found to hang at rest relative to the bus, with the string making an angle of 30.0? with the vertical. In this position, the package is 40.0mfrom the center of curvature of the curve. What is the speed of the bus?
A disk rolls along a flat surface at a constant speed of 10m/s. Diameter is 0.5m....
A disk rolls along a flat surface at a constant speed of 10m/s. Diameter is 0.5m. At a particular instant P, at the edge of the disk, is 45 degree from the horizontal at the centre. what is the magnitude acceleration of the point of contact of the disk?
An 10.6 kg object is pulled along a horizontal surface at constant speed. If the coefficient...
An 10.6 kg object is pulled along a horizontal surface at constant speed. If the coefficient of friction is 0.11, what is the force of friction? An applied force of 10.9 N [right] provides a 9.46 kg object with a net acceleration of 2.31 m/s2 [right] on a flat surface. What is the magnitude of the force of friction acting on the object? A 6.2 kg object is pulled along a horizontal surface by a force of 22.0N. If its...
1) A cylinder of Mass M and radius R, and initial speed V, starts rolling up...
1) A cylinder of Mass M and radius R, and initial speed V, starts rolling up an incline of angle theta relative to horizontal. Assuming no slipping, how high up does the cylinder get? 2) teeter/totter a) Peewee has mass m and his big buddy Delilah has mass 2m. If Peewee sits at one end of a uniform teeter totter of length L and mass M, how far from the central pivot should Delilah sit (ie on the other end)...
Mass M moves to the right with speed =v along a frictionless horizontal surface and crashes...
Mass M moves to the right with speed =v along a frictionless horizontal surface and crashes into an equal mass M initially at rest. Upon colliding, the two masses stick together and move with speed V to the right. Notice that v and V denote different speeds.  After the collision the magnitude of the momentum of the system is: (pick all correct answers) 2 M V M V 0 2 M v M v
A hollow cylinder (hoop) is rolling on a horizontal surface at speed v = 3.3 m/s...
A hollow cylinder (hoop) is rolling on a horizontal surface at speed v = 3.3 m/s when it reaches a 16 ? incline. How far up the incline will it go? How long will it be on the incline before it arrives back at the bottom?
A compact disc rotates from rest up to an angular speed of 34.3 rad/s in a...
A compact disc rotates from rest up to an angular speed of 34.3 rad/s in a time of 0.867 s. (a) What is the angular acceleration of the disc, assuming the angular acceleration is uniform? rad/s2 (b) Through what angle does the disc turn while coming up to speed? rad (c) If the radius of the disc is 4.45 cm, find the tangential speed of a microbe riding on the rim of the disc. m/s (d) What is the magnitude...
A long, straight wire carrying a current of 3.00 A moves with a constant speed v...
A long, straight wire carrying a current of 3.00 A moves with a constant speed v to the right. A 5-turn circular coil of diameter 1.25 cm, and resistance of 3.25 µΩ, lies stationary in the same plane as the straight wire. At some initial time, the wire is at a distance d = 19.5 cm from the center of the coil. 4.55 s later, the wire is at a distance 2d from the center of the coil. What is...
The constant-speed magnetization curve for a 25-kW, 250-V dc machine at a speed of 1200 r/min...
The constant-speed magnetization curve for a 25-kW, 250-V dc machine at a speed of 1200 r/min is shown in figure below. This machine is separately excited and has an armature resistance of 0.14 Ω. This machine is to be operated as a dc generator while driven from a synchronous motor at constant speed. a. What is the rated armature current of this machine? b. With the generator speed held at 1200 r/min and if the armature current is limited to...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT