Science question?

0 ⤊

A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the force required to keep the puck sliding at constant velocity is:

A. 0 N
B. equal to the weight of the puck
C. the weight of the puck divided by the mass of the puck
D. none of these

2007-04-29 17:21:32 · 2 answers · asked by Mo 1 in Science & Mathematics ➔ Physics

2 answers

since there is no force resisting the motion then no force is required for constant speed.

A.

j

2007-04-29 17:32:59 · answer #1 · answered by odu83 7 · 0⤊ 0⤋

A. 0 N.
Without friction there will be no forces pulling the puck back and reducing its celocity, so no forces are required to balance them, hence the answer is 0 N

2007-04-30 00:33:24 · answer #2 · answered by Mohammad J 1 · 0⤊ 0⤋