Two objects collide head on in an elastic collision. Assume they have equal masses but unequal velocities, such that the one coming in from the right is moving at 7 m/s toward the left, and the one coming in from the left is moving at 4 m/s toward the right. After the collision, what is the velocity of the one that came in from the left? (Use + to the right and - to the left to distinguish direction in your answer.) Answer in m/s.

Q: Consider the before- and after-collision momentum vectors in the diagram below. Determine the…

A: The magnitude of the momentum of the system before collision is given by,

Q: Consider a system that consists of two balls and whose momentum is conserved. Ball A whose mass is 2…

A: Here given the two ball whose momentum is conserved. Ball A of mass2 kg and speed 50 m/s and ball B…

Q: In the figure below, block A (mass 2.0 kg) slides into block B (mass 1.7 kg), along a frictionless…

A: mAvAi +mBvBi = mAvAf + mBvBf and    (2.0kg)(5.6m/s ) + (1.7kg )(2.5m/s ) - (1.7kg )(4.9m/s )2kg =…

Q: What is the momentum of a 15-g sparrow flying with an initial speed of 12 m/s to the east? If the…

A: Momentum of an object is given by the equation p=mvm is the massv is the velocity Momentum is a…

Q: A bullet having a mass of 0.05 kg, moving with a velocity of 400 m/s penetrates a distance o 0.1 m…

A: According to Work Energy Theorem the work done in a dynamic system is equal to change in kinetic…

Q: A 8-g block slides with a velocity of 18 cm/s on a smooth level surface and makes a head-on…

A: Given Information:- Mass of the first block is m1=8 g Mass of the second block is m2=26 g Initial…

Q: Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height h/2 as…

A: Given,m1 = 0.046 kgm2 = 9m1h = 0.55 mcollision between the ball is elastic

Q: a) Find the impulse of the force. N · s (b) Find the final velocity of the object if it is…

A: The literal meaning of impulse is a sudden desire. The effectiveness of a force to produce motion is…

Q: Consider a box that explodes into two pieces while moving to the right along an x-axis. If one…

A: Initial mass of box (M) = m1 + m2Initial velocity of the box is along + x axis

Q: For this problem, take right as the positive direction and left as the negative direction. Bouncy…

A:

Q: What do the negative and positive signs in velocities and momentum indicate?

A: Velocity is the time derivative of position. As the velocity is the speed with direction, its…

Q: What is the change in momentum of a 25 g baseball originally travelling at 30 m/s forward, if after…

A: Given:Mass of ball, m=25 gInitial velocity, u=30 m/sFinal velocity, v=-75 m/s   To determine change…

Q: Use the worked example above to help you solve this problem. An pickup truck with mass 1.82 x 10 kg…

A: So we can see, before the collision, they had different velocities but after the collision, they…

Q: An astronaut whose mass is 80 kg carries an empty oxygen tank with a mass of 10 kg. She throws the…

A:

Q: In the following exercise, we will assume that motion going from left-hand-side to right-hand-side…

A:

Q: An average force (of magnitude 40 N) is applied to an object for some amount of time. If the…

A:

Q: Consider the before- and after-collision momentum vectors in the diagram below. Determine the…

A:

Q: If we hit a 0.25 kg ball travelling 15 m/s leftward towards the bat that then travels 15 m/s…

A: Impulse is the effect of force over a small time interval. It is equal to the change in momentum.…

Q: Consider the before- and after-collision momentum vectors in the diagram below. Determine the…

A: Given:  m1 = 2kg, u1 = 2 m/s , v1 = 1 m/s m2 = 4 kg, u2 = 1 m/s , v2 = 2 m/s

Q: Two identical, hard, spherical balls X and Y each of mass m, are travelling in opposite directions,…

A: Two identical hard spherical balls X and Y each of mass m, are travelling in opposite direction with…

Q: Consider the collision pictured below. While m2=10kg is initially at rest, horizontally moving…

A:

Q: soccer ball with a mass of 0.432 kg approaches a player horizontally with a speed of 16.0 m/s. The…

A: According to impulse momentum theorem  Impulse = change in momentum

Q: The force shown in the force vs. time diagram in the figure below acts on a 1.0-kg object. A…

A: To determine,(a)  the impulse of the force.  (b) the final velocity of the object if it is initially…

Q: If the cart starts from rest, what will be its velocity after the impulse ignoring friction? If you…

A: According to the impulse-momentum theorem, the change in momentum of the cart must be equal to the…

Q: TOPIC: Impulse and Momentum A 80 kg astronaut throws a 7 kg ball with a velocity of 25 m/s east.…

A: 80kg Astronaut throws 7kg ball at 25m/s east

Q: Use the worked example above to help you solve this problem. An pickup truck with mass 1.76 x 103 kg…

A:

Q: Two pool balls of equal mass (m = 0.170 kg) collide elastically. If ball one had an initial velocity…

A: MASS of the ball given  m1 = m2 = 0.170 kg speed of ball 1  = 1.24 i + 1.32 j speed of ball 2 = -1 i…

Q: Consider the before- and after-collision momentum vectors in the diagram below. Determine the…

A: System Momentum Before Collision: P = m1u1+m2u2 P = (1)(2)+(1)(1) = 3 kg m/s   System Momentum After…

Q: Two masses collide on a frictionless horizontal floor and in a perfectly inelastic collision. Mass 1…

A:

Q: A hockey puck of mass 0.6 kg with an ini- tial speed of 6.74 m/s collides elastically with another…

A: For the elastic collision, both momentum and energy before and after the collision are conserved…

Q: A firecracker is moving to the left before it explodes. Right after exploding, it breaks off into…

A: Conservation of momentum says momentum of the system before collision equal to momentum of system…

Q: Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height h/2 as…

A: Given:    For ball 1        mass, m1 = 0.04 kg        height, h = 0.35 m    For ball 2        mass,…

Q: For all the collisions in this lab, what can you conclude about the sum of the changes in momentum…

A: according to law of conservation of momentum total momentum before collision is equal to total…

Q: Look at the figure below, the masses of the objects, and the velocities before and after the…

A:

Q: A cart with a spring plunger runs into a fixed barrier. The mass of the cart, it's velocity just…

A:

Q: Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height h/2 as…

A: Given data The initial velocity of the first ball is: u1 = 0  The initial velocity of the second…

Q: Two toy cars have the masses and velocities shown in the diagram below. Before the collision V=4 m/s…

A: Momentum is a vector quantity which means that it has both magnitude and direction to it. It can be…

Q: Two cars, of mass 2 kg and 1 kg, approach each other heads-on with the same speed 3 m/s, as shown in…

A: Mass of the cars are, m1 = 2 kg m2 = 1 kg Initial speed of the first car is v1 = 3 m/s and that of…

Q: A girl weighing 540 N jumps from a tree, and her center of mass falls a vertical distance of 1.80 m.…

A:

Q: Use the following information to answer the next question. 2.4 kg 3.2 m/s 8.4 m/s 9.5 kg The two…

A: Given,  Mass of object 1, m1=2.4 kg, the initial velocity of object 1, u1=3.2 m/s, Mass of object 2,…

Q: Consider the before- and after-collision momentum vectors in the diagram below. Determine the…

A: The system momentum before collision is

Q: A ball of mass 10 kg makes a head-on elastic collision with a second ball (at rest) and rebounds…

A:

Q: Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height h/2 as…

A:

Q: USING THE UAM FORMULA, SOLVE: A constant force of 3.5 N acts on a 7 kg block, initially at rest,…

A:

Q: What is the meaning of the momentum of a particle, and how the impulse of the net external force…

A: Meaning of Momentum: Momentum implies a quantity of motion in simple way. It depends on mass and…

Q: What is the velocity and direction of the collision if a railway train with a mass of 6,000 kg is…

A: Given data: Mass of railway train (m1) = 6000 kg Velocity of railway train (V1) = 2.0 m/s, to the…

Q: Use the worked example above to help you solve this problem. An pickup truck with mass 1.78 x 103 kg…

A: