Pleas solve this Ball A has a mass of 1.0 kg and is moving at 2.0 m/s. Ball B ha
ID: 2242791 • Letter: P
Question
Pleas solve this
Ball A has a mass of 1.0 kg and is moving at 2.0 m/s. Ball B has a mass of 2.0 kg and is moving at 1.0 m/s. Which has more kinetic energy? ball A ball B they both have the same kinetic energy need more information You put on the brakes of your bicycle and cause yourself and the bicycle to slow down along a flat (level) piece of road. Consider "the system of interest" to be yourself and the bicycle. The mechanical energy of this system is Decreasing because of friction. Conserved because the system is isolated. We need more information. Conserved because energy is always conserved. Increasing because the ground is doing work on the system. What is a perfectly elastic collision? A collision in which the colliding objects stick together. A collision in which momentum is conserved. A collision in which mechanical energy is conserved. A collision in which mechanical energy is lost.Explanation / Answer
1) a) ball A has more kinetic energy
KE of A = 0.5*1*2^2 = 2 J
KE of B = 0.5*2*1^2 = 1 J
2) a) Decreasing because of frictio
3) c)A collision in which mechanical energy is conserved