Homework Answers
You step off a boat on to the pier. if you have a mass of 75...
You step off a boat on to the pier. if you have a mass of 75 kg and the boat has a mass of 50 kg and you had already tied the boat loosely such that both you and the boat had a velocity of 0 before you took the step: a.) Find the velocity of the boat if you are moving towards the pier at 2 m/s. What direction does the boat go? b.) What is the total momentum...
CONSERVATION OF MOMENTUM IN ONE DIMENSION Mech 49 I. Momentum as a vector The momentum. P....
CONSERVATION OF MOMENTUM IN ONE DIMENSION Mech 49 I. Momentum as a vector The momentum. P. of an object is defined as the product of its mass and its velocity: P = mü. The momentum of a system of multiple objects is defined as the vector sum of the momenta of the objects in that system: Psystem = P. + P2 + P3 + .... ob a bilno A. Two small boats are in a lake. An observer on the...
Jack and Jill are in a boat 4 m long. The boat has mass 48 kg...
Jack and Jill are in a boat 4 m long. The boat has mass 48 kg and its weight is uniformly distributed along its length. Jill (mass 30 kg) sits at one end and Jack (mass 45 kg) sits at the other end. The boat is in still water, not moving as children stay still. If Jack and Jill exchange their positions, by how much does the boat move? Ignore any resistance of the lake's water.
1. A 30.00 kg mass moving with the velocity of 10 m/s. The momentum of the...
1. A 30.00 kg mass moving with the velocity of 10 m/s. The momentum of the body will be A. 144.2 kg m/s. B. 187.8 kg m/s. C. 320.0 kg m/s. D. 442.4 kg m/s. E. None of the above 2. Out of the following which one is not a vector quantity? A. Force B. Impulse C. Mass D. velocity 3. Impulse is the product of which two quantities? A. Mass and Time B. Mass and Momentum C. Force and...
Please help! Just part B! Thanks! Bob, whose mass is 90 kg, is out in a...
Please help! Just part B! Thanks!
Bob, whose mass is 90 kg, is out in a 4 meter long canoe that has a mass of 110 kg. Bob is sitting at the left end of the boat, which is 10 meters away from the shore. For reference, the shore is at x = 0. Suddenly Amy appears on the shore, yelling at Bob that she wants a tug-of-war rematch on solid ground. Bob, terrified of this threat, gets up and...
A 5000N 2 00014 601 5. A boat is being towed by two smaller boats A...
A 5000N 2 00014 601 5. A boat is being towed by two smaller boats A and B and The current is pushing the boat with a 2000N force at 60 degrees as shown. Find the direction of the resultant forces. If the larger boat has a mass of 20,000 kg what is the acceleration? Consider the larger boat as a particle. 3000M
(20 pts) On a frictionless, horizontal air table, puck A (with mass 0.15 kg) is moving toward puck B (with mass 0.3 kg), which is initially at rest. After the collision, puck A has a velocity of...
(20 pts) On a frictionless, horizontal air table, puck A (with mass 0.15 kg) is moving toward puck B (with mass 0.3 kg), which is initially at rest. After the collision, puck A has a velocity of 0.11 m/s to the left, and puck B has a velocity of 0.65 m/s to the right. (a) What was the speed of puck A before the collision? (b) Calculate the change in the total kinetic energy of the system (A and B)...
Object A has mass mA = 9 kg and initial momentum PA = < 15,-8,0 >...
Object A has mass mA = 9 kg and initial momentum PA = < 15,-8,0 > kgm/s, just before it strikes object B, which has mass mg = 12 kg. Just before the collision object B has initial momentum 8,1 = < 4,7,0 > kg. m/s. Consider a system consisting of both objects A and B. What is the total initial momentum of this system, just before the collision? sysj = (19,-1,0) kg.m/s The forces that A and B exert...
Person A (m = 50 kg) sits RIGHT opposite person B (m = 65 kg) at...
Person A (m = 50 kg) sits RIGHT opposite person B (m = 65 kg) at opposite ends of a boat (m = 100 kg) a distance d = 8 m. The two people get up and exchange seats. The boat rests on a frictionless horizontal surface. Which of the following is true? (Select only one answer and ignore wind resistance.) the boat moves to the right and continues to move to the right even after the passengers stop moving...
CONSERVATION OF MOMENTUM IN ONE DIMENSION Mech 49 I. Momentum as a vector The momentum. P. of an object is defined as the product of its mass and its velocity: P = mü. The momentum of a system of multiple objects is defined as the vector sum of the momenta of the objects in that system: Psystem = P. + P2 + P3 + .... ob a bilno A. Two small boats are in a lake. An observer on the...
Jack and Jill are in a boat 4 m long. The boat has mass 48 kg and its weight is uniformly distributed along its length. Jill (mass 30 kg) sits at one end and Jack (mass 45 kg) sits at the other end. The boat is in still water, not moving as children stay still. If Jack and Jill exchange their positions, by how much does the boat move? Ignore any resistance of the lake's water.
1. A 30.00 kg mass moving with the velocity of 10 m/s. The momentum of the body will be A. 144.2 kg m/s. B. 187.8 kg m/s. C. 320.0 kg m/s. D. 442.4 kg m/s. E. None of the above 2. Out of the following which one is not a vector quantity? A. Force B. Impulse C. Mass D. velocity 3. Impulse is the product of which two quantities? A. Mass and Time B. Mass and Momentum C. Force and...
Please help! Just part B! Thanks!
Bob, whose mass is 90 kg, is out in a 4 meter long canoe that has a mass of 110 kg. Bob is sitting at the left end of the boat, which is 10 meters away from the shore. For reference, the shore is at x = 0. Suddenly Amy appears on the shore, yelling at Bob that she wants a tug-of-war rematch on solid ground. Bob, terrified of this threat, gets up and...
A 5000N 2 00014 601 5. A boat is being towed by two smaller boats A and B and The current is pushing the boat with a 2000N force at 60 degrees as shown. Find the direction of the resultant forces. If the larger boat has a mass of 20,000 kg what is the acceleration? Consider the larger boat as a particle. 3000M
(20 pts) On a frictionless, horizontal air table, puck A (with mass 0.15 kg) is moving toward puck B (with mass 0.3 kg), which is initially at rest. After the collision, puck A has a velocity of 0.11 m/s to the left, and puck B has a velocity of 0.65 m/s to the right. (a) What was the speed of puck A before the collision? (b) Calculate the change in the total kinetic energy of the system (A and B)...
Object A has mass mA = 9 kg and initial momentum PA = < 15,-8,0 > kgm/s, just before it strikes object B, which has mass mg = 12 kg. Just before the collision object B has initial momentum 8,1 = < 4,7,0 > kg. m/s. Consider a system consisting of both objects A and B. What is the total initial momentum of this system, just before the collision? sysj = (19,-1,0) kg.m/s The forces that A and B exert...
Person A (m = 50 kg) sits RIGHT opposite person B (m = 65 kg) at opposite ends of a boat (m = 100 kg) a distance d = 8 m. The two people get up and exchange seats. The boat rests on a frictionless horizontal surface. Which of the following is true? (Select only one answer and ignore wind resistance.) the boat moves to the right and continues to move to the right even after the passengers stop moving...
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