- #1
Jonathan Teas
- 13
- 0
Homework Statement
ok this is the scenario: just supppose you had a block of ordinary ice on a frozen lake. Of course, it is free from all friction. Now, suppose some continuous, constant force acts on the block in a horizontal direction. after some time, the force is stopped so the speed of the block will have increased a certain amount.
A:if orignal force is left unchanged, but the mass is doubled, the the speed increase will be
a:unchanged,b:doubled,c:tripled,d:cut in half,e:four-fold
B:if the mass and action time is unchanged but the force is doubled, then the change in speed will be:
a:unchanged,b:doubled,c:trippled,d:cut in half,e:four-fold
C:the force the and the mass are the same, but somehow the force of gravity is doubled. the the speed increase will be:
a:unchanged,b:doubled,c:trippled,d:cut in half,e:four-fold
Homework Equations
f=ma
The Attempt at a Solution
I think, that for A it should be e, only b/c if the mass is doubled then the speed will decrease heavily.
For B, i think that it should be quadrupled. but I am really not sure.
For C, I think that if the force of gravity is doubled the the speed should be halfed and not 4-fold b/c g is never squared but I am really not sure.