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Question 3: The coefficient of kinectic friction between crates A and B and the inclined surface...
Two identical balls come into a collision with a coefficient of restitution e=0.8. Before the impact,...
Two identical balls come into a collision with a coefficient of restitution e=0.8. Before the impact, VA = 7 m/s and V3 = 3 m/s. Their directions are as shown. Determine the magnitude of velocity of each ball after the impact. Include the following steps in your VB solution: a) Define a coordinate system appropriately. (3 pts) b) Calculate the two components of each velocity before the impact. (6 pts) c) Apply the right principle(s)/equation(s) to determine the component velocities...
Two identical pucks collide with coefficient of restitution e =0.8. Before impact, Va=7 m/s and Vb...
Two identical pucks collide with coefficient of restitution e =0.8. Before impact, Va=7 m/s and Vb = 3 m/s. Determine magnitude of velocity of each puck after impact. Define coordinate system. Determine component velocities of each puck after impact. Calculate two components of each velocity before impact. 2001
Two particles A and B strike each other and then rebound. The coefficient of restitution between...
Two particles A and B strike each other and then rebound. The coefficient of restitution between the two is 0.3. mA = 3.7 kg and mB = 4.2 kg. Before the collision vA = 2.2 j m/s and after vA'= 0.6 j m/s. What are the pre- and post-collision velocities of particle B? Answers: Before, vB = j m/s After, vB' = j m/s.
3. A particle of mass m moves vertically downward with velocity vi and strikes a smooth...
3. A particle of mass m moves vertically downward with velocity vi and strikes a smooth triangular block of mass 2m which is initially stationary. Assuming a coefficient of restitution e, find the velocities of the block and the particle immediately after impact. Hints . The restitution of two object in one-dimensional collision means, γ = ta-ta, where vang are the velocities after the impact and va, vb are the velocities before the impact, obeying the same positive direction ....
Crates A and B weigh 110 lb and 60 lb, respect coefficient of kinetic friction between...
Crates A and B weigh 110 lb and 60 lb, respect coefficient of kinetic friction between the crates and the from rest, the -0.22 ively. If they start ground is μ 4 P = 50 Ib a. Draw the free body diagram for both Crates. b. Find the frictional force acting on each crate. c. Write the Principle of Impulse and Momentum Eq.'s their speed when t
Two disks collide with the initial velocities just before the collision as shown in (Figure 1).
Learning Goal: To use the conservation of momentum and the coefficient of restitution to determine the speeds of two disks after a collision Two disks collide with the initial velocities just before the collision as shown in (Figure 1). What are the speeds of the two disks just after impact if the coefficient of restitution is e = 0.9? The masses of the disks are mA = 5 kg and mB = 7.5 kg, the initial velocities are vA = 3...
The two disks A and B have a mass of 3 kg and 6 kg. respectively.
The two disks A and B have a mass of 3 kg and 6 kg. respectively. They collide with the initial velocities shown. The coefficient of restitution is e = 0.7. Suppose that (VA)1 = 5 m/s, (vB)1 = 7 m/s. (Figure 1) Part D Determine the angle between the x axis and the velocity of B just after impact, measured clockwise from the positive x axis.
b) Disk A in Fig B2b has a mass of 2 kg and is sliding forward...
b) Disk A in Fig B2b has a mass of 2 kg and is sliding forward on the smooth surface with a velocity (%),-5 m/s when it strikes the 4 kg disk B. Disk B is coefficient of restitution between the disks is e0.4, compute the velocities of A and B just after collision. Hint Coefficient of restitution is defined as e where indices 1 and 2 mark velocities before and after impact respectively. Je Fig. B2b [8 marks]
Consider the blocks on the inclined surface above.
4. Consider the blocks on the inclined surface above. They are attached by a steel rod that does not bend. Suppose the mass of block m 1=15 kg and has a coefficient of kinetic friction μ_k=.2, and a coefficient of static friction μ_s=.9 and θ=42 degrees. Suppose the mass of the second block is m2=25 kg.a. Suppose the masses are initially at rest. What is the minimum coefficient of friction of m2 required to stop both of them from sliding...
Two smooth disks A and Beach have a mass of 0.5 kg
Two smooth disks A and Beach have a mass of 0.5 kg. Both disks are moving with the velocities shown when they collide. The coefficient of restitution is e = 0.7. Suppose that (vA)1 = 7 m/s, (vB)1 = 3 m/s.(Figure 1) Part A Determine the magnitude of the final velocity of A just after collision. Part B Determine the angle between the x axis and the final velocity of A just after the collision measured counterclockwise from the positive r axis.Part C Determine the magnitude...
Two identical balls come into a collision with a coefficient of restitution e=0.8. Before the impact, VA = 7 m/s and V3 = 3 m/s. Their directions are as shown. Determine the magnitude of velocity of each ball after the impact. Include the following steps in your VB solution: a) Define a coordinate system appropriately. (3 pts) b) Calculate the two components of each velocity before the impact. (6 pts) c) Apply the right principle(s)/equation(s) to determine the component velocities...
Two identical pucks collide with coefficient of restitution e =0.8. Before impact, Va=7 m/s and Vb = 3 m/s. Determine magnitude of velocity of each puck after impact. Define coordinate system. Determine component velocities of each puck after impact. Calculate two components of each velocity before impact. 2001
3. A particle of mass m moves vertically downward with velocity vi and strikes a smooth triangular block of mass 2m which is initially stationary. Assuming a coefficient of restitution e, find the velocities of the block and the particle immediately after impact. Hints . The restitution of two object in one-dimensional collision means, γ = ta-ta, where vang are the velocities after the impact and va, vb are the velocities before the impact, obeying the same positive direction ....
Crates A and B weigh 110 lb and 60 lb, respect coefficient of kinetic friction between the crates and the from rest, the -0.22 ively. If they start ground is μ 4 P = 50 Ib a. Draw the free body diagram for both Crates. b. Find the frictional force acting on each crate. c. Write the Principle of Impulse and Momentum Eq.'s their speed when t
b) Disk A in Fig B2b has a mass of 2 kg and is sliding forward on the smooth surface with a velocity (%),-5 m/s when it strikes the 4 kg disk B. Disk B is coefficient of restitution between the disks is e0.4, compute the velocities of A and B just after collision. Hint Coefficient of restitution is defined as e where indices 1 and 2 mark velocities before and after impact respectively. Je Fig. B2b [8 marks]
4. Consider the blocks on the inclined surface above. They are attached by a steel rod that does not bend. Suppose the mass of block m 1=15 kg and has a coefficient of kinetic friction μ_k=.2, and a coefficient of static friction μ_s=.9 and θ=42 degrees. Suppose the mass of the second block is m2=25 kg.a. Suppose the masses are initially at rest. What is the minimum coefficient of friction of m2 required to stop both of them from sliding...
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