The discussion revolves around a dynamics problem involving a bowling ball and friction on ice. The original poster presents a scenario where a bowling ball with a given mass and coefficient of kinetic friction is bowled on ice, seeking to determine the distance it travels before coming to rest.
The discussion is ongoing, with participants raising concerns about the problem's formulation and the assumptions involved. Some suggest that the question may have errors or lack sufficient information, while others seek clarification on how to approach the problem given the stated conditions.
There is a noted lack of information regarding rolling resistance and angular momentum, which some participants believe may be relevant to solving the problem. The original poster expresses uncertainty about how to proceed with the given information.
Are you sure this is the question exactly as given to you?Nith said:The coefficient of kinetic friction between a 3.5kg bowling ball and the ice on a frozen lake is very small: μ= 0.02. If the ball is bowled on the ice with an initial velocity of 16.5ms^-1, how far will it travel before friction brings it to rest?
Because of the sparsity of information I assumed that the ball behaves as if it were a block and slides until it comes to rest.haruspex said:Are you sure this is the question exactly as given to you?
As it stands it makes no sense. It will slide at first but later roll. No rolling resistance is specified, so it will could roll forever.
It clearly specifies a ball, not a puck.kuruman said:Because of the sparsity of information I assumed that the ball behaves as if it were a block and slides until it comes to rest.
I assume that is what they want. How would you solve this?kuruman said:Because of the sparsity of information I assumed that the ball behaves as if it were a block and slides until it comes to rest.
How would you solve this?haruspex said:It clearly specifies a ball, not a puck.
As I posted, the question as stated is nonsensical. Two possible errors:Nith said:How would you solve this?
we have not covered angular momentum. But assuming it is a puck how can i solve it with the given information?haruspex said:As I posted, the question as stated is nonsensical. Two possible errors:
1. They mean a puck, not a ball. In this case, answer @kuruman 's post #2.
2. They meant to ask "before the ball rolls without slipping". In this case, you need to think angular momentum. In what circumstances is that conserved?
Then answer #2 and see if you can find the acceleration from the force.Nith said:we have not covered angular momentum. But assuming it is a puck how can i solve it with the given information?
You posted one relevant equation. You need one related to kinetic friction. You must have been taught one.Nith said:we have not covered angular momentum. But assuming it is a puck how can i solve it with the given information?
Yes but how do i calculate the disance?haruspex said:You posted one relevant equation. You need one related to kinetic friction. You must have been taught one.
How do you mean "yes"? Do you mean you know the equation I am referring to? Please post it.Nith said:Yes but how do i calculate the disance?