Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 14A, Problem 5PLA
To determine
The speed and the direction of the second cart after the collision.
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Students have asked these similar questions
A 2.0 kg baseball is pitched with a speed of 40 m/s and is then batted back to the pitcher with a speed of 60 m/s. What is the magnitude of the change in the ball's momentum? Show your work.
(a) 20 kg * m/s
(b) 4 kg * m/s
(c) 2 kg * m/s
(d) 8 kg * m/s
One 20.0 kg cart starts, initially at rest, reaches a velocity of 10.0 m/s while another cart of mass 15.0 kg reaches a velocity of 20.0 m/s while having started from a dead stop. What is each cart’s state of motion value and which underwent the greater impulse? If each cart’s impulse underwent the same time interval, which cart underwent the most force?
show work so I can understand please
Before a collision, Cart A has 50 kg m/s of momentum and Cart B has -10 kg m/s momentum.
Following the collision, Cart A has momentum of 30 kg m/s, Cart B is moving but you don’t know its momentum yet.
What is the total momentum of the 2 car system before the explosion? Show your work.
Assuming this system is isolated, what is the total momentum of the 2 car system after the explosion?
What is the momentum of cart B after the explosion?
If Cart B has a mass of 5 kg, how fast is cart B moving?
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Physics Laboratory Manual
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- During an elastic collision, a proton with a velocity of 5000 m/s (forward) undergoes a head on collision with an alpha particle (composed of two protons and two neutrons) with a velocity of 2000m/s (backward). Determine the final velocities of the subatomic particles. Assume forward is positive. Show all your work please.arrow_forwardA 1.2 kg ball moving due east at 40m/s strikes a stationary 6.0 kg object. The 1.2 kg ball rebounds to the west at 25m/s. What is the speed of the 6.0 kg object after the collision? Show your work and calculate the final answer.arrow_forwardA man whose mass is 80 kg and a women whose mass is 50 kg sit at opposite ends of a canoe 5m long, whose mass is 30kg. (a) Relative to the man, where is the center of mass of the system consisting of man, women, and canoe? (Hint: choose a specific coordinate system with a specific origin.) (b) Suppose that the man moves quickly to the center of the canoe and sits down there. How fr does the canoe move in the water? Explain your work and your assumptions.arrow_forward
- A ball of mass m moving with velocity v⃗ i strikes a vertical wall as shown in (Figure 1). The angle between the ball's initial velocity vector and the wall is θi as shown on the diagram, which depicts the situation as seen from above. The duration of the collision between the ball and the wall is Δt , and this collision is completely elastic. Friction is negligible, so the ball does not start spinning. In this idealized collision, the force exerted on the ball by the wall is parallel to the x axis.What is the magnitude F of the average force exerted on the ball by the wall?arrow_forward2. A ball of mass 0.26 kg is dropped from a height of 2.0 m. It hits the ground and rebounds to a height of 1.4 m. a) What was the ball’s velocity and momentum immediately before hitting the ground? (b) What was the ball’s velocity and momentum just as it left the ground? (c) What was the impulse applied to the ball from hitting the ground? Take g = 9.81 m/s2 and show all your workarrow_forwardUse the worked example above to help you solve this problem. Two billiard balls of identical mass move toward each other as shown in the figure. Assume that the collision between them is perfectly elastic. If the initial velocities of the balls are v1i = +25.2 cm/s and v2i = −20.3 cm/s, what are the velocities of the balls after the collision? Assume friction and rotation are unimportant. (Indicate the direction with the sign of your answer.) v1f = v2f =arrow_forward
- When balls collide in a game of pool, the collision is almost perfectly elastic. Let us assume we have a perfectly elastic collision of two pool balls, one weighted heavier than the other, M1 = 0.175 kg and M2 = 0.250 kg. 1. Suppose the initial velocity of ball 1 is v1i = 1.2 m/s and the initial velocity of ball 2 is v2i = -0.5 m/s. Determine the initial momentum and kinetic energy. Show your work. 2. Determine the final velocities of the two balls v1i and v2i after this elastic collision. Show your work. 3. If the collision took place in 1/20 of a second, t = 0.05 s, determine the average magnitude of the normal force acting between the balls during the collision. Show your work.arrow_forwardA 22-g bullet traveling 240 m/s penetrates a 2.0-kg block of wood and emerges going 150 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges? please show your work, including diagrams, algebraic equations, and enough written explanations that somebody who is not familiar with the problem could understand what you are doing.arrow_forwardA 6.0-kg object, initially at rest in free space, "explodes" into three segments of equal mass. Two of these segments are observed to be moving with equal speeds of 20 m/s with an angle of 60° between their directions of motion. How much kinetic energy is released in this explosion? Show your workarrow_forward
- A tie of uniform width is laid out on a table, with a fraction of its length hanging over the edge. Initially, the tie is at rest. (a) If the fraction hanging from the table is increased, the tie eventually slides to the ground. Explain. (b) What is the coefficient of static friction between the tie and the table if the tie begins to slide when one-fourth of its length hangs over the edge? Show your work and explain.arrow_forwardIn the ballistic pendulum shown below, the block has a mass of 1.4 kg, the bullet has a mass of 0.0091 kg, and the string has a length of 2.62 m. A bullet is shot directly at the block, lodging into the block, and causing the pendulum to swing forward 20°. What was the initial speed of the bullet, in m/s? Be clear and show all your work. (handwritten answer)arrow_forwardDisplayed to the right are two carts connected by a cord that passes over a small frictionless pulley. Each cart rolls freely with negligible friction. Consider the mass of the cart to be m1 and the angle the first cart sits on to be θ1, while the mass of the second cart as m2 and the angle it sits on to be θ2. a)Considering the positive x direction to be pointing as it is in the image, write an equation for the acceleration that the two blocks experience in terms of the mass of the first block m1, the angle θ1, the mass of the second block m2, the angle θ2, and the acceleration due to gravity g. b) What is the equation for tension in regards to the rope coming from the second block? Answer in terms of the mass of the block m2, the acceleration due to gravity g, the angle θ2, and the acceleration of the blocks found previously a.arrow_forward
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