- #1
physics_luver
- 1
- 0
Homework Statement
A 730-N man stands in the middle of a frozen pond of radius 5m. He is unable to get to the shore of the pond because there's no friction between his shoes and the ice. So the man throws his 1.2kg textbook north horizontally at velocity of 5m/s. How long does it take him to reach the south shore?
Homework Equations
p=mv I'd presume
The Attempt at a Solution
so, the textbook's momentum is p=1.2(5) p=6kg m/s
I got Pstart=Pend
then Pstart of textbook + Pstart of man= Pend of textbook + Pend of man
therefore, 6+73(0?)=6+73(Vf)
then this means Vf of man is zero? I got confused after that...