Object 1 has mass m and is moving with speed v. Object 2 has mass m/5...
Object 1 has mass m and is moving with speed v. Object 2 has mass m/5 and is moving with speed 5v. How do their kinetic energies, K1 and K2, compare to each other?
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K1 = K2 |
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K1 = K2/25 |
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K1 = 25K2 |
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K1 = 5K2 |
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K1 = K2/5 |
Homework Answers
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Object 1 has mass m and is moving with speed
v. Object 2 has mass m/5...
An object of mass m moving at speed v0 strikes an object of mass 2 m...
An object of mass m moving at speed v0 strikes an object of mass 2 m which had been at rest. The first object bounces backward along its initial path at speed v 0. Is this collision elastic, and if not, what is the change in kinetic energy of the system? a) The kinetic energy decreases by mv^2. b) The kinetic energy increases by mv^2. c) The kinetic energy decreases by mv^2/2. d) The collision is elastic.
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26. An object of mass 4 kg moving with a speed of 25 m/s to the right collides with an object of mass 5 kg at rest. If the collision is completely inelastic, calculate the kinetic energy lost during the collision. (1 point) A. 0-375.524 J B. -1056.849 J C. -1285.67 J D. -694.444 J E. -479.985 J
V = ? 2M An object of mass 3M, moving in the +x direction at speed...
V = ? 2M An object of mass 3M, moving in the +x direction at speed vo, breaks into two pieces of mass M and 2M as shown in the figure. If 0,= 64.0 and 02 = 25.0', determine the final velocities vi and 2 of the resulting pieces in terms of Uo. 3M M * = ? UL Uo U2 = Do
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Th figure below shows a mass m=1.0 kg which is initially moving with speed v=7.2 m/s...
Th figure below shows a mass m=1.0 kg which is initially moving
with speed v=7.2 m/s at the top of a frictionless hill of height
h=4.9 m. It slides down the hill until it encounters a flat section
with unknown coefficient of kinetic friction µk. If the object
travels a distance D=11.1 m before reaching a speed of v/2, what is
the coefficient of kinetic friction µk? (use picture, but first
question)
Th figure below shows a mass m=1.0 kg...
The kinetic energy, KE, for an object of mass m, moving at velocity v is represented...
The kinetic energy, KE, for an object of mass m, moving at velocity v is represented with the equation KE is equal to (1/2)(mass)(velocity)^2 Write the kinetic energy equation using a mathematical equation. Include: • The symbols for mass and velocity. • The Math Equation Function to write 1/2 in the fraction format. • Use the superscript format to write (velocity)^2.
The figure below shows a mass m=1.0 kg which is initially moving with speed v=6.7 m/s...
The figure below shows a mass m=1.0 kg which is initially moving
with speed v=6.7 m/s at the top of a frictionless hill of height
h=4.9 m. It slides down the hill until it encounters a flat section
with unknown coefficient of kinetic friction µk. If the
object travels a distance D=10.8 m before reaching a speed of v/2,
what is the coefficient of kinetic friction µk?
✓ -D h
? 2M 3.M An object of mass 3M, moving in the +x direction at speed Do,...
? 2M 3.M An object of mass 3M, moving in the +x direction at speed Do, breaks into two pieces of mass M and 2M as shown in the figure If 0, = 66.0 and 02 = 23.0", determine the final velocities 1, and v, of the resulting pieces in terms of . DI DO Do
26. An object of mass 4 kg moving with a speed of 25 m/s to the right collides with an object of mass 5 kg at rest. If the collision is completely inelastic, calculate the kinetic energy lost during the collision. (1 point) A. 0-375.524 J B. -1056.849 J C. -1285.67 J D. -694.444 J E. -479.985 J
V = ? 2M An object of mass 3M, moving in the +x direction at speed vo, breaks into two pieces of mass M and 2M as shown in the figure. If 0,= 64.0 and 02 = 25.0', determine the final velocities vi and 2 of the resulting pieces in terms of Uo. 3M M * = ? UL Uo U2 = Do
Th figure below shows a mass m=1.0 kg which is initially moving
with speed v=7.2 m/s at the top of a frictionless hill of height
h=4.9 m. It slides down the hill until it encounters a flat section
with unknown coefficient of kinetic friction µk. If the object
travels a distance D=11.1 m before reaching a speed of v/2, what is
the coefficient of kinetic friction µk? (use picture, but first
question)
Th figure below shows a mass m=1.0 kg...
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The figure below shows a mass m=1.0 kg which is initially moving
with speed v=6.7 m/s at the top of a frictionless hill of height
h=4.9 m. It slides down the hill until it encounters a flat section
with unknown coefficient of kinetic friction µk. If the
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what is the coefficient of kinetic friction µk?
✓ -D h
? 2M 3.M An object of mass 3M, moving in the +x direction at speed Do, breaks into two pieces of mass M and 2M as shown in the figure If 0, = 66.0 and 02 = 23.0", determine the final velocities 1, and v, of the resulting pieces in terms of . DI DO Do
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