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SEASONOFTHEWITCH
Questions and answers by visitors named
SEASONOFTHEWITCH
Questions (1)
Train car A is at rest when it is hit by train car B. The two cars, which have the same mass, are stuck together and move off
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Answers (17)
new user MRRAGE copy n paste this for answer hehe The chart show the masses and velocities of two colliding objects that stick together after a collision. According to the law of conservation of momentum, what is the momentum of the object after the
HELLO ITS MY LAST QUESTION BOT The chart show the masses and velocities of two colliding objects that stick together after a collision. According to the law of conservation of momentum, what is the momentum of the object after the collision? 4,500 g · m/s
The chart show the masses and velocities of two colliding objects that stick together after a collision. According to the law of conservation of momentum, what is the momentum of the object after the collision? 4,500 g · m/s 1,750 g · m/s 1,500 kg · m/s
Football helmets are made with padding that helps reduce head injuries when a player collides with an object. Which best explains how the padding reduces injuries? It extends the time of the collision. It reduces the time of the collision. It eliminates
The diagram shows two balls before they collide. 2 balls with grey arrows pointing to them from the outside. The left ball has below it m subscript 1 = 0.6 kilograms v subscript 1 = 0.5 meters per second. The right ball has below it m subscript 2 = 0.5
The law of conservation of momentum states that, if left alone, what happens to the total momentum of two interacting objects that make up a system? it increases over time it remains the same it eventually becomes zero changes based on how they collide
It's not POSITIVE they are all NEGATIVE - ignore that question here is a new one I better get 90 or 80. The chart shows masses and velocities of four objects. A 3-column table with 4 rows titled Motion of 4 Objects. The first column labeled Object has
A 50 kg pitcher throws a baseball with a mass of 0.15 kg. If the ball is thrown with a positive velocity of 35 m/s and there is no net force on the system, what is the velocity of the pitcher? −0.1 m/s −0.2 m/s −0.7 m/s −1.4 m/s
Two carts collide and bounce apart. Cart 1 had a momentum of –6 kg • m/s before the collision. Cart 2 had a momentum of 10 kg • m/s before the collision. What is the total momentum of the carts after the collision? –16 kg • m/s –10 kg • m/s 4
A car has a momentum of 20,000 kg • m/s. What would the car’s momentum be if its velocity doubles? 10,000 kg • m/s 20,000 kg • m/s 40,000 kg • m/s 80,000 kg • m/s
A bowling ball collides with a pin and pushes the pin toward the right. Which describes the reaction force? The pin pushes the bowling ball toward the right. The pin pushes the bowling ball toward the left. The bowling ball pulls the pin toward the right.
TEST TIME!! get me all right answers or else. What is the momentum of a 5 kg object that has a velocity of 1.2 m/s? 3.8 kg • m/s 4.2 kg • m/s 6.0 kg • m/s 6.2 kg • m/s
I got that wrong but I don't think it matters here is a new question: The padding around the goal post increases the time of the collision between the player and the post, which decreases the force exerted to bring the player to a stop. What did you
Goal posts at the ends of football fields are padded as a safety measure for players who might run into them. How does thick padding around the goal post reduce injuries to players?
The astronaut can throw the hammer in a direction away from the space station. While he is holding the hammer, the total momentum of the astronaut and hammer is 0 kg • m/s. According to the law of conservation of momentum, the total momentum after he
An astronaut on a space walk floats a little too far away from the space station. Without air to push against, he cannot paddle back. However, the astronaut is holding a hammer. Explain how the astronaut could use the hammer to move and why this will get
WRONG ITS The final velocity is half of train car B’s initial velocity.
