Physics Momentum
posted by Isis .
1) Two 1 kg balls move away from each other, one traveling 5 m/s to the right, the other 5 m/s to the left. What is the magnitude of the total momentum of the system?
2) Two 1000 kg cars drive east; the first moving at 20 m/s, the second at 40 m/s. What is the magnitude of the total momentum of the system?
3) If a moving object doubles its speed, a) how much more momentum does it have? b) How much more kinetic kinetic energy?
4) How fast is 0.015 kg bullet moving if it has a momentum equal to 4.5 kg m/s.?
:)

1. Momentum = m1V1 + m2V2=1*5 + 1*5=0.
2. Momentum = m1V1 + m2V2 =20000+40000 =
60,000.
3. a. Energy doubles.
b. 4 times.
4. Momentum = m*V = 4.5.
0.015*V = 4.5
V = 300 m/s.
Respond to this Question
Similar Questions

physics
Two particles of mass m1 = 1.0 kg and m2 = 2.6 kg are traveling with velocities v1 = 4.9, and v2 = 2.5 as shown in the figure below. What is the total momentum of this system? 
physics
Two particles of mass m1 = 1.0 kg and m2 = 2.6 kg are traveling with velocities v1 = 4.9, and v2 = 2.5 as shown in the figure below. What is the total momentum of this system? 
Science (Physics)
Two 1.5 kg balls move away from each other, one traveling 9 m/s to the right, the other 2 m/s to the left. What is the magnitude of the total momen tum of the system? 
physics
Hello, I'm trying to figure out which of the following statements are TRUE. I suspect that 2, 6, 8 are true...and that there is one more that is true, but not sure which one? 
Physics
Hello, I'm trying to figure out which of the following statements are TRUE. I suspect that 2, 6, 8 are true...and that there is one more that is true, but not sure which one? 
physics
Two identical balls are moving at the same speed of 3 m/s toward each other. With no external forces acting, what would be the magnitude (value) of the total momentum of the two balls after collision? 
physics
Two objects are approaching an intersection. One is a 50 kg traveling at 8 m/s from east to west and the other is a 40 kg going from south to north at 12 m/s. (a) Find the x and y components of the net momentum of this system. (b) … 
Physics
Two 1.5 kg balls move away from each other, one traveling 6 m/s to the right, the other 2 m/s to the left. What is the magnitude of the total momentum of the system? 
Physics
I think I chose the correct answer. In a closed system, two carts have a compressed spring between them. One of the carts has a total mass, including its contents, of 2.0 kg, and the other has total mass of 1.0 kg. Which cart experiences … 
physics
Two blocks are sliding along a frictionless track. Block A (mass 3.73 kg) is moving to the right at 1.50 m/s. Block B (mass 4.48 kg) is moving to the left at 1.80 m/s. Assume the system to be both Block A and Block B. a) what is the …