Question

Curling is a game that is popular in Scotland, Canada, Scandinavia, and some other places with cold winters. Curling involves sliding heavy granite stones along a sheet of ice, and trying to get closest to a target painted on the ice.

Let's say you have a curling stone with a mass of 20.0 kg, and you give it an initial velocity of 2.40 m/s along the horizontal ice surface. The coefficient of kinetic friction is rather small, only 0.010. We can also assume that g = 10.0 m/s2.

What is the initial momentum of the curling stone, in units of kg m/s?
______________ kg m/s

What is the net force acting on the curling stone, after you let it go and while it is sliding across the ice?
______________ N

Sketch a graph of the momentum of the stone as a function of time for 30 seconds after you let it go.

How many seconds does it take the stone to come to rest?
______________ s

Answer 1