A toy car of mass m can travel at a fixed speed.It moves in a circle on a horizontal table . The string is attached to a block of mass M that hangs by a string from the table with which the toy car is attached . The coefficient of friction is k.Find the ratio of maximum radius to the minimum radius.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
Not the answer you are looking for? Search for more explanations.
the tension in the string 'Mg' is constant here..now at a low speed the centrifugal force is less..so it cannot balance out the Mg force..hence the toy car has a tendency to move towards the centre..and hence friction (for minimum and maximum values of radius this friction can be considered to be on the verge of being kinetic friction..that is the maximum amount of static friction) acts in the outwards from the centre in direction of the centrifugal force to balance the 'Mg' force..in another case for a high speed case the centifugal force is larger than the tension in the string 'Mg' ..so now the tendency of the toy car is to move outward from the circle which now is balanced by the frictional force acting inwards in the direction of the tension in the string.corresponds to the minimum radii.so write down the two dynamic equations from the free body diagrams..to obtain the ratio of radius.