Physics, 31.07.2019 13:30 isabelperez063
In a shuffleboard game, the puck slides a total of 12 m before coming to rest. if the coefficient of kinetic friction between the puck and the horizontal board is 0.34, what was the initial speed of the puck?
Answer from: Beth6013
The frictional force is given by
where m is the mass of the puck, and is the dynamic coefficient of friction.
The work done by this force to stop the puck is
where is the total displacement of the puck.
The initial kinetic energy of the puck is
with v being the puck initial velocity. The puck comes to rest after 12 m, this means it loses all its kinetic energy, and for the principle of conservation of energy this loss of energy is equal to the work done by the frictional force. So we can write
and from this we can find the inizial velocity of the puck:
where m is the mass of the puck, and is the dynamic coefficient of friction.
The work done by this force to stop the puck is
where is the total displacement of the puck.
The initial kinetic energy of the puck is
with v being the puck initial velocity. The puck comes to rest after 12 m, this means it loses all its kinetic energy, and for the principle of conservation of energy this loss of energy is equal to the work done by the frictional force. So we can write
and from this we can find the inizial velocity of the puck:
Answer from: Quest
Look it up you feel me
Answer from: Quest
conduct current i mean it makes sense
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