Suppose you are playing hockey on a new-age ice surface for which there is no friction...
A. not slow down or speed up.
B. speed up a little, and then move at a constant speed.
C. speed up a little, and then slow down.
D. start to slow down.
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Suppose you are playing hockey on a new-age ice surface for which
there is no friction...
A hockey puck slides on ice (looking down on the ice from above; blue arrows are...
A hockey puck slides on ice (looking down on the ice from above; blue arrows are momentum, red line shows path); friction and air resistance are negligible. When the puck reaches location 2 it is struck hard by a hockey stick; the contact lasts a very short time. It then travels from 2 to 3 at nearly constant momentum. The magnitude of the puck's momentum is the same at locations 1 and 3. Which green arrow best indicates the direction of...
An ice hockey puck is moving on a horizontal rough surface with the kinetic friction coefficient...
An ice hockey puck is moving on a horizontal rough surface with the kinetic friction coefficient μ=0.16μ=0.16. How far will the puck go before coming to a complete stop if it's initial speed is V0 = 18.5 m/s? The traveled distance is ? How long will it take for the puck to stop? The time of travel is?
A local ice hockey team has asked you to design an apparatus for measuring the speed...
A local ice hockey team has asked you to design an apparatus for measuring the speed of the hockey puck after a slap shot. Your design is a 2.00-m-long, uniform rod pivoted about one end so that it is free to rotate horizontally on the ice without friction. The 1.30-kg rod has a light basket at the other end to catch the 0.163-kg puck. The puck slides across the ice with velocity v vector (perpendicular to the rod), hits the...
A hockey puck sliding across ice has an initial speed of 11 m/s but after 40.0...
A hockey puck sliding across ice has an initial speed of 11 m/s but after 40.0 m has slowed down to 10.5 m/s. (10 pnts) (a) What is the coefficient of kinetic friction between the ice and puck? (b) What would be the coefficient of kinetic friction between the same ice and puck if you glued another identical puck on top of the first one? I'm not sure that I have all of the equations to solve this, so I'm...
7. A hockey puck B at rest on a smooth ice surface is struck by puck...
7. A hockey puck B at rest on a smooth ice surface is struck by puck A of the same mass. Puck A was originally traveling at 30 m/s along the x-axis and is deflected 30 degrees from its original direction after an elastic collision. Use the principle of conservation of momentum and energy to, (a) compute the speed of each puck after the elastic collision, and (b) find the angle of puck B makes with the x-axis after the...
A. Alhouse is thrown straight upward off a high building. The building is located somewhere on...
A. Alhouse is thrown straight upward off a high building. The building is located somewhere on the surface of Earth. 4 seconds later, the mouse hits the ground. ASSUME: • The building is an unknown height. • The mouse takes 4 seconds to reach the ground. • The mouse's initial speed is 5 m/s DETERMINE: • The height of the building. 6 pts) B. Near the surface of Earth, a helicopter travels upward at a constant velocity. At some moment,...
5. Hockey pucks A and B have masses mA 2kg and mB -4kg and slide towards each other on ice. The ice is very smooth so friction is negligible. Below is a top view of the system before the hockey pucks...
5. Hockey pucks A and B have masses mA 2kg and mB -4kg and slide towards each other on ice. The ice is very smooth so friction is negligible. Below is a top view of the system before the hockey pucks collide: 0 i.B ● m13 a) A initially slides horizontally to the right with a speed of 15m/s and B initially slides with a speed of 5m/s at an angle θ 36.87 as shown above. If the pucks stick...
An experiment is done on a horizontal surface. A block of mass m_1 is initially held...
An experiment is done on a horizontal surface. A block of mass m_1 is initially held in place compressing a spring with spring constant k by a distance x_0. The other end of the spring is firmly attached to the wall and does not move. What is the final speed of m_1 after it is released and loses contact with the spring? After it reaches its final speed, m_1 collides and sticks to a second block of mass m_2. What...
1. Draw a Freebody Diagram of the boat T. pictured to the right. Choose an appropriate...
1. Draw a Freebody Diagram of the boat T. pictured to the right. Choose an appropriate coordinate system. Write equations for F = mã. The mass of the boat is 2500 kg, the boat is being - lifted with constant velocity, and the rope angles are equal = 60°. What are the magnitude of the tensions T1 and T2 e 2. The picture shows a mass, mi, on a ramp with an angle of 37° to the horizon. It is...
Problem 1. You hit a bowling ball with a mallet, starting from rest. Every time you...
Problem 1. You hit a bowling ball with a mallet, starting from rest. Every time you hit it, its velocity increases by exactly 10 cm/s. You start timing (t 0 seconds) at the instant you hit the ball the first time, and you hit it once every second. Two simplifying approximations: (1) Suppose each hit is very short, so the speed changes in a short amount of time and (2) suppose the ball doesn't slow down between hits a. Att...
A local ice hockey team has asked you to design an apparatus for measuring the speed of the hockey puck after a slap shot. Your design is a 2.00-m-long, uniform rod pivoted about one end so that it is free to rotate horizontally on the ice without friction. The 1.30-kg rod has a light basket at the other end to catch the 0.163-kg puck. The puck slides across the ice with velocity v vector (perpendicular to the rod), hits the...
7. A hockey puck B at rest on a smooth ice surface is struck by puck A of the same mass. Puck A was originally traveling at 30 m/s along the x-axis and is deflected 30 degrees from its original direction after an elastic collision. Use the principle of conservation of momentum and energy to, (a) compute the speed of each puck after the elastic collision, and (b) find the angle of puck B makes with the x-axis after the...
A. Alhouse is thrown straight upward off a high building. The building is located somewhere on the surface of Earth. 4 seconds later, the mouse hits the ground. ASSUME: • The building is an unknown height. • The mouse takes 4 seconds to reach the ground. • The mouse's initial speed is 5 m/s DETERMINE: • The height of the building. 6 pts) B. Near the surface of Earth, a helicopter travels upward at a constant velocity. At some moment,...
5. Hockey pucks A and B have masses mA 2kg and mB -4kg and slide towards each other on ice. The ice is very smooth so friction is negligible. Below is a top view of the system before the hockey pucks collide: 0 i.B ● m13 a) A initially slides horizontally to the right with a speed of 15m/s and B initially slides with a speed of 5m/s at an angle θ 36.87 as shown above. If the pucks stick...
An experiment is done on a horizontal surface. A block of mass m_1 is initially held in place compressing a spring with spring constant k by a distance x_0. The other end of the spring is firmly attached to the wall and does not move. What is the final speed of m_1 after it is released and loses contact with the spring? After it reaches its final speed, m_1 collides and sticks to a second block of mass m_2. What...
1. Draw a Freebody Diagram of the boat T. pictured to the right. Choose an appropriate coordinate system. Write equations for F = mã. The mass of the boat is 2500 kg, the boat is being - lifted with constant velocity, and the rope angles are equal = 60°. What are the magnitude of the tensions T1 and T2 e 2. The picture shows a mass, mi, on a ramp with an angle of 37° to the horizon. It is...
Problem 1. You hit a bowling ball with a mallet, starting from rest. Every time you hit it, its velocity increases by exactly 10 cm/s. You start timing (t 0 seconds) at the instant you hit the ball the first time, and you hit it once every second. Two simplifying approximations: (1) Suppose each hit is very short, so the speed changes in a short amount of time and (2) suppose the ball doesn't slow down between hits a. Att...
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