In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg
Sahay Sir > Question Answers > In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg
A hemisphere of radius R and mass 4 m is free to slide with its base on a smooth horizontal table . A particle of mass m is placed on the top of the hemisphere . The angular velocity of the particle relative to centre of hemisphere at an angular displacement θ when velocity of hemisphere has become v is
20
Sep
A hemisphere of radius R and mass 4 m is free to slide with its base on a smooth horizontal table . A particle of mass m is placed on the top of the hemisphere . The angular velocity of the particle relative to centre of hemisphere at an angular displacement θ when velocity of [...]
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In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg ,
respectively. a. If the man walks to the front of the boat and stops. what is the separation between the boat and the pier now? b. If the man moves at a constant speed of 3m/s relative to the boat ,
what is the total kinetic energy of the system (boat + man)? Compare this energy with the kinetic energy of the system if the boat was tied to the pier. ,
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them and the blocks are pushed together with the spring between them. A cord initially holding the blocks together is burned, after that, the block of mass 3M moves to the right with a speed of 2.00m/s. (a) What is the velocity of the block of mass M. (b) Find the system’s original elastic potential energy, taking M=0.350kg. (c) Is the original energy in the spring or in the cord? Explain your answer. (d) Is momentum of the system conserved in the bursting apart process? How can it be with large forces acting? How can it be with no motion beforehand and plenty of motion afterward?
20
Sep
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them and the blocks are pushed together with the spring between them. A cord initially holding the blocks together is burned, after that, the block of mass 3M moves to the right with [...]
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after that ,
frictionless surface. A light spring is attached to one of them and the blocks are pushed together with the spring between them. A cord initially holding the blocks together is burned ,
In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg ,
respectively. a. If the man walks to the front of the boat and stops. what is the separation between the boat and the pier now? b. If the man moves at a constant speed of 3m/s relative to the boat ,
the block of mass 3M moves to the right with a speed of 2.00m/s. (a) What is the velocity of the block of mass M. (b) Find the system's original elastic potential energy ,
Two blocks of masses M and 3M are placed on a horizontal ,
what is the total kinetic energy of the system (boat + man)? Compare this energy with the kinetic energy of the system if the boat was tied to the pier. ,
An 80 kg boy and his 40 kg sister, both wearing roller blades, face each other at rest. The girl pushes the boy hard, sending him backward with velocity 3.0 m/s towards the west. Ignore friction, (a) Describe the subsequent motion of the girl. (b) How much chemical energy is converted into mechanical energy in the girl’s muscles? (c) Is the momentum of the boy-girl system conserved in the pushing apart process? How can it he with no motion beforehand and plenty of motion afterward?
20
Sep
An 80 kg boy and his 40 kg sister, both wearing roller blades, face each other at rest. The girl pushes the boy hard, sending him backward with velocity 3.0 m/s towards the west. Ignore friction, (a) Describe the subsequent motion of the girl. (b) How much chemical energy is converted into mechanical energy in [...]
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An 80 kg boy and his 40 kg sister ,
both wearing roller blades ,
face each other at rest. The girl pushes the boy hard ,
In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg ,
respectively. a. If the man walks to the front of the boat and stops. what is the separation between the boat and the pier now? b. If the man moves at a constant speed of 3m/s relative to the boat ,
sending him backward with velocity 3.0 m/s towards the west. Ignore friction ,
what is the total kinetic energy of the system (boat + man)? Compare this energy with the kinetic energy of the system if the boat was tied to the pier. ,
In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg, respectively. a. If the man walks to the front of the boat and stops. what is the separation between the boat and the pier now? b. If the man moves at a constant speed of 3m/s relative to the boat, what is the total kinetic energy of the system (boat + man)? Compare this energy with the kinetic energy of the system if the boat was tied to the pier.
20
Sep
In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg, respectively. a. If the man walks to the front of the boat and stops. what is the separation between the boat and the pier now? b. If the man [...]
Tags:
In figure a man stands on a boat floating in still water. The mass of the man and the boat is 60 kg and 120 kg ,
respectively. a. If the man walks to the front of the boat and stops. what is the separation between the boat and the pier now? b. If the man moves at a constant speed of 3m/s relative to the boat ,
what is the total kinetic energy of the system (boat + man)? Compare this energy with the kinetic energy of the system if the boat was tied to the pier. ,