The diagram above depicts two pucks on a frictionless table.Puck II is four time
ID: 1728251 • Letter: T
Question
The diagram above depicts two pucks on a frictionless table.Puck II is four times as massive as puck I. Starting from rest, thepucks are pushed across the table by two equal forces. Which puckwill have the greater kinetic energy upon reaching the finish line?A)IA)I
B)II
C)They both have the same amount.
D)There is too little information to answer thequestion. Hint: Work = force times distance. The forces on the pucks arethe same, they are pushed through the same distance, so the sameamount of net work is done. This work is converted intokinetic energy. (Work - Kinetic Energy Theorem). So bothpucks have the same kinetic energy.
B)II
C)They both have the same amount.
D)There is too little information to answer thequestion. Hint: Work = force times distance. The forces on the pucks arethe same, they are pushed through the same distance, so the sameamount of net work is done. This work is converted intokinetic energy. (Work - Kinetic Energy Theorem). So bothpucks have the same kinetic energy.
Hint: Work = force times distance. The forces on the pucks arethe same, they are pushed through the same distance, so the sameamount of net work is done. This work is converted intokinetic energy. (Work - Kinetic Energy Theorem). So bothpucks have the same kinetic energy.
Explanation / Answer
C)They both have the same amount.