Amotorcycle has a constant speed of 22.7 m/s as it passes over the top of a hill whose radius of curvature is 179 m. the mass of the motorcycle and driver is 342 kg. find the magnitude of (a) the centripetal force and (b) the normal force that acts on the cycle.

On the hill, (a) the centripetal force is , approximately and on the top of the hill, (b) the normal force exerted on the cycle is .

Explanation:

In this case, uniform circular movement equations are suitable, then (a) the centripetal force is given by

Now, (b) at the top of the fill, where weight alligns with the centripetal force and the normal, by applying Newton's second law, we have

.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.