the internal diameter of a brass ring is 15.94cm,and the diameter of a wheel is 16.00cm both measured at the same temperature . Find the smallest rise in temperature through which the brass ring must be heated in order that it may just slip on to the wheel.

16.00 cm, both measured at the same temperature. Find the smallest rise in temperature through which the brass ring must be heated in order that it may just

Explanation:

Action - Pulling up the train.

Reaction - Friction on the locomotive

Explanation:

Locomotive is pulling the train upwards ,

Which is the action force applied by the locomotive,

As a reaction locomotive will be pulled by the train which is the reaction of pulling

Now, considering it as a action on locomotive , friction force will act on it as a reaction upwards which will result to move it upwards.

For train action is pulling up by locomotive and reaction will be friction acting on it downwards.