An object of mass 13 kg going to the right with a speed of 9m/s collides with a 10kg object at rest. If the collision is completely elastic, calculate the speed of the 10 kg object after collision.
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Physics
A car of mass 600 kg is moving at a speed of 20 m/s.it collides with a stationary car of mass 900 kg.if the first car bounces back at 4 m/s,at what speed does the second car move after the collusion?

PHYSICS
1. A 4.0 N force acts for 3 seconds on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the object? 2. A railroad freight car, mass 15,000 kg, is allowed to coast along a level track

calculus help check and help
if an object with mass m is dropped from rest, one model for its speed v after t seconds, taking air resistance into account is v= mg/c(1e^(ct/m)) where g is the acceleration due to gravity and c is a positive constant describing air resistance. a)

Physics
A car mass 600kg moving a speed 20m/s.it collides with a stationary car mass 900kg.if the first car bounce back 4m/s.what speed does the second object after collision

Science
4: Which of the following is true of an object in a circular motion at a constant speed? A: The net force on the object is zero B: The object is not accelerating as the speed of the object remains the same C:the object is accelerating as the direction of

Physics
A 1.2 kg object is moving with a speed of 8.0 m/s collides perpendicularly with a wall and emerges with a speed of 6.0m/s in the opposite direction perpendicular to the wall. If the object is in contact with the wall for 2.0m/s. What is the magnitude of

science
A boy and his skateboard have a combined mass of 64 kg. If he is moving with a speed of 3.2 m/s, and collides with a stationary skateboarder whose mass (including his skateboard) is 96 kg, with what speed will the two skateboarders move immediately after

Physics
A body of mass 2kg moving with velocity of 6m/s collides with a stationary object of mass 0.5kg. If the two bodies move together after impact, calculate their common velocity.

Physics
An object moving along a horizontal track collides with and compresses a light spring (which obeys Hooke's Law) located at the end of the track. The spring constant is 38.6 N/m, the mass of the object 0.270 kg and the speed of the object is 1.20 m/s

Physics
Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. The work done on object A is 500J. After the force pulled each object, object A moves twice as fast as object B. Answer the

Physics
A 4kilogram mass has a speed of 6 m/s on a horizontal frictionless surface. The mass collides headon and elastically with an identical 4kilogram mass initially at rest. The second 4kilogram mass then collides headon and sticks to a third 4kilogram

Physics Conservation of Momentum
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

physics (work/nonconservative forces)
An object moving along a horizontal track collides with and compresses a light spring (which obeys Hooke's Law) located at the end of the track. The spring constant is 47.3 N/m, the mass of the object 0.230 kg and the speed of the object is 1.80 m/s

Science
A steel ball A of mass 20.0 kg moving with a speed of 2.0 ms−1 collides with another ball B of mass 10.0 kg which is initially at rest. After the collision A moves off with a speed of 1.0 ms−1 at an angle of 30º with its original direction of motion.

Physics
The object in the figure has a mass of 3.45 kg and is pulled up a slope AB, which is 36 m long; the height BC is 3.00 m. There is no friction and the acceleration is constant. The speed v1 at A is 3.5 m/s whereas the speed v2 at B is 5.5 m/s. The average

Science
24. What does the thermal energy of an object depend upon? A. The temperature and arrangement of the particles in that object. B. The temperature, weight, and number of particles of that object. **** C. The heat of that object and the density of particles.

physics
An object with mass 2.3 kg is executing simple harmonic motion, attached to a spring with spring constant 280 N/m . When the object is 0.019 m from its equilibrium position, it is moving with a speed of 0.65 m/s. Calculate the amplitude of the

physics
A object of mass 3.00 kg is subject to a force Fx that varies with position as in the figure below. Find the work done by the force on the object as it moves as follows: (a) from x = 0 to x = 4.00 m 1 Your response differs from the correct answer by 10% to

Physics
A boy and his skateboard have a combined mass of 64 kg. If he is moving with a speed of 3.2 m/s, and collides with a stationary skateboarder whose mass (including his skateboard) is 96 kg, with what speed will the two skateboarders move immediately after

Physical ScienceCan someone check my answers?
1) The kinetic energy of an object depends on which of the following? A. the object’s mass and direction B. the object’s speed and mass C. the object’s work and direction D. the object’s speed and work 2) In the following situations,

physics
Three objects lie in the x, y plane. Each rotates about the z axis with an angular speed of 4.44 rad/s. The mass m of each object and its perpendicular distance r from the z axis are as follows: (1) m1 = 6.00 kg and r1 = 1.00 m, (2) m2 = 4.50 kg and r2 =

physics
Object 1 has a velocity of 3m/s and a mass of 5kg. Object 2 also has a mass of 5kg but isn't moving. Object 1 collides with Object 2 and they move off together. Work out their speed using the principle of conservation of momentum.

Physics
A car of mass M, traveling at speed v collides headon with a truck of mass 2M & traveling in the opposite direction at the same speed. Both vehicles lock together and come to a stop. Which, if either, has the most momentum upon impact? Which, if either,

PHYSICS MAT
A 1.2 kg object moving at initial velocity 2.0m/s collides elastically with a stationary 0.5kg object horizontally. Calculate A) the velocity of each object after the collision. B) the impulsive force if the contact time is 0.3 s.

physics
Three forces acting on an object are given by F1 = (  1.85i + 2.50j) N, F2 = (  5.10i + 3.25j ) N, and F3 = (  45.0i + 48.0j ) N. The object experiences an acceleration of magnitude 3.75 m/s2. (a) What is the direction of the acceleration? _________°

Physics
an object of mass 3 kg is moving in the positive xdirection with a speed of 10 m/s. A second object of mass 5 kg is moving in the northwest direction with a speed of 8 m/s. If the two stick together after the collision, what is the final velocity

Physics Conservation of Momentum
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

physics
Object A, which has mass m and a velocity Voi,collides with the Object B,which has mass 2m and a velocity 1/2Voj.Following the collision ,object B has a velocity of 1/4Voi.(a) Determine the velocity of object A after the collision.(b) Is the collision

Physics
A 26.0 g object moving to the right at 17.0 cm/s overtakes and collides elastically with a 10.0 g object moving in the same direction at 15.0 cm/s. Find the velocity of each object after the collision. a) 26.0 g object b) 10.0 g object

physic
a mass 2.9kg object moving at a speed of 5.9m\s sticks a mass 0.88kg object initially at rest. immeditaly after the collision the 2.9kg object has a velocity of 0.99m/s directed 27 degree from its initial line of motion. that is the speed of the 0.88kg

physics
A 9.00 kg object starting from rest falls through a viscous medium and experiences a resistive force = b , where is the velocity of the object. The object reaches one half its terminal speed in 5.54 s. (a) Determine the terminal speed. (b) At what time is

Physics
A car with a mass M traveling to the East at speed v collides headon with a truck of mass 2M, traveling to the west at speed v. If they stick and move together upon colliding, what is the initial velocity of the wreckage after the collision?

Physics (The moment of Impact)
1. Which mathematical representation correctly identifies impulse? A. implulse= force/time B. impulse= force * time C. impulse= acceleration * time D. impulse= velocity/time 2. In a closed system, a ball with a mass of 3 kg and a momentum of 24 kg·m/s

Physics "Momentum of impact"
1. Which mathematical representation correctly identifies impulse? A. implulse= force/time B. impulse= force * time C. impulse= acceleration * time D. impulse= velocity/time 2. In a closed system, a ball with a mass of 3 kg and a momentum of 24 kg·m/s

physics
1) a force of 10 N acts on a 5.0 kg object, initially at rest, for 2.5 s. What is the final speed of the object? 2) a 1500 kh car, is allowed to coast along a level track at a speed of 8.0 m/s. It collides and couples with a 2000kg truck , initially at

mathematics
An object moves around x^2 + y^2 = 25 (which represents a circle whose radius is 5 meters) at a constant speed. At time t = 0 seconds, the object is at (5, 0). When t = 1, it is at (4, 3). Where is the object when t = 2? when t = 3? when t = n? What is the

science
An object with mass 110 kg moved in outer space. When it was at location < 11, 35, 7 > its speed was 17.5 m/s. A single constant force < 230, 420, 230 > N acted on the object while the object moved to location < 16, 41, 13 > m. What is the speed of

Physics
A cart of mass M1 = 4.00 kg and initial speed = 4.00 m/s collides head on with a second cart of mass M2 = 2.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. i keep getting the wrong answer please help me.I

Physics please help!!
A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. I have tried the answer 5.0 m/s however it says it

Physics
An object with mass 3.0 kg is executing simple harmonic motion, attached to a spring with spring constant k =210 N/m. When the object is 0.23 m from its equilibrium position, it is moving with a speed of 0.72 m/s. (a) Calculate the amplitude of the motion.

Physics
A car with a mass of 1700 kg is traveling directly northeast (45 degrees between north and east) at a speed of 14m/s (31mph), and collides with a smaller car with a mass of 1300kg that is traveling directly south at a speed of 18m/s (40mph). The two cars

Physics
An object of mass 13 kg going to the right with a speed of 9m/s collides with a 10kg object at rest. If the collision is completely elastic, calculate the speed of the 10 kg object after collision.

Physics
an object of mass 5 kg has initial speed of 8 m/s it is sliding across an 8 m long table and has a coefficient of friction of .204 with the table sitting at the edge of the table is a 3 kg object at rest the 5 kg object collides and sticks to the 3 kg

Physics
A 5.5 kg object with a speed of 4.0 m/s collides headon with a 13 kg object moving toward it with a speed of 3.0 m/s. The 13 kg object stops dead after the collision. (a) What is the final speed of the 5.5 kg object? m/s (b) Is the collision elastic? Yes

physics
An object A, of mass 1 kg that is moving at a velocity of 6ms^1 collides with a stationary object of mass 3kg. after the collision, the object move in the directions as shown. Determine the value of V1 and V2.

Physics
In DESPERATE NEED OF HELP!!! An object of mass m = 10 kg and speed v = 2 m/s collides head on with a second object of mass m = 5 kg which has a speed v = 1 m/s. The objects stick together. There are no external forces on the two objects (note the given

Physics ~really need help!~
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

HELPPPPP
so im done with everything except fro this question : A(n) 2.3 kg object moving with a speed of 8.6 m/s collides with a(n) 4 kg object moving with a velocity of 8.8 m/s in a direction39.0135◦ from the initial direction of motion mof the 2.3 kg

Physics
object A of mass 3g with a velocity of 12cm/s to the east, collides with stationary object B. After collision, object A rebounds with a velocity of 10cm/s to the west and object B has a velocity of 1.5cm/s to the east. Calculate the mass of obeject B

Physics
Object 1, which has mass 100 kg, is moving at 3 m/s and collides with Object 2, which has mass 50 kg and is moving at 8 m/s. If the first object stops moving after the collision, how fast would the second object be moving at that time? I think the answer

physics
a 4 kg object moving with a speed of 7.8 m/s collides with a 16 kg object moving with a velocity of 7.6 m/s in a direction of 22 degrees from the initial direction of motion the 4 kg object. what is the speed of the two objects after the collision if they

Physics (IMPULSE)
A cart traveling at 0.3 m/s collides with stationary object. After the collision, the cart rebounds in the opposite direction. The same cart again traveling at 0.3 m/s collides with a different stationary object. This time the cart is at rest after the

PHYSICS
1. A 4.0 N force acts for 3 seconds on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the object? 2. A railroad freight car, mass 15,000 kg, is allowed to coast along a level track

physics
Object A, which has a mass m and a velocity Vo(i,) ̂ collides with object B, which has a mass 2m and velocity 1/2Vo(j.) ̂ Following the collision ,object B has a velocity of 1/4Vo(i.) ̂(a)Determine the velocity of object A after the collision.(b) Is the

physics
a(n) 6kg object moving with a speed of 8.3 m/s collides with a(n) 18kg object moving with a velocity of 10 m/s in a direction 23(degrees) from the initial direction of motion of the 6kg object. What is the speed of the two objects after the collision if

physics
A 5 kg object moving with a speed of 6.6 m/s collides with an 18 kg object moving with a velocity of 8.4 m/s in a direction 19 degrees from the initial direction of the motion of the 5 kg object. What is the speed of the two objects after collision if they

Physics URGENT
Object 1 (mass=6.4 kg) traveling in the +x direction at a speed of 14.01m/s undergoes an inelastic collision with Object 2 (mass=5.10kg) which is at rest. Object two flies off at a speed of 11.94m/s and an angle θ2=49.8 °. The diagram below is just a

Science
An object with a mass of 5kg collides witn an object with a mass of 3kg that is stationary.the two objects stick together and move on with a velocity of 6m.1 .what was the velocity of the 5kg mass before the collision took place?

physics
The homework question asks: which work woulf be required to stop a moving object: the intial speed, the intial kinetic energy of the object, the mass of the object times it acceleration, the mass of the object times its intials speed, or the square of the

Really Physics
A 2.4 Kg object moving to the right at 0.8c collides with a 3.2 kg object moving to left at 0.6c. They stick together. Find the mass and velocity of the resulting combined object by; a) assuming that you have no knowledge of relativistic physics, b) using

Physics
1. Will the swinging wonder ever let 2 ball bearings go in and one ball bearing out with twice the v? Why? 2. A 10.0 kg object moving to the right with a speed of 4.0 m/s collides and sticks to a 4.0 kg object moving to the left with a speed of 4.0 m/s.

physics
A 5.0 kg object moving in the +x direction at 5.5 m/s collides headon with a 3.1 kg object moving in the x direction at 4.0 m/s. Find the final velocity of each mass for each of the following situations. (Take the positive direction to be +x.) The bodies

physics
A 80 kg object slides at a 20 degree plane downward at 5m/s. An object 2 collides with object 1 by falling from 7 meter height and they stick together. Final speed of objects? I know the speeds would be the same. Would momentum equation work to solve this?

physics
One object is at rest and another is moving. The two collide in a onedimensional, completely inelastic collision. In other words, they stick together and move off with shared velocity. The speed of the object that is moving initially is 25 m/s. The masses

Physics
An object m of mass m=1kg is attached to a string that passes through a hole in the center of a table. The object m moves in a circle of radius r=1.3m. An object M of mass M=2.1kg is tied to the other end of the string, and hangs vertically beneath the

Physics
An object of mass 1.4kg is placed 12.0 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the object remains fixed on the turntable until a rate of 36 rpm is reached, at which point the object

Physics
An object of mass 1.4kg is placed 11.5 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the object remains fixed on the turntable until a rate of 37 rpm is reached, at which point the object

physics
A body of mass 10 kg moving at a speed of 4 m/s collides with another body of mass 4 kg at rest. After collision, if the speed of the body of 4kg mass be 5 m/s, the speed of body of 10kg mass shall be?

Physics
A 5kg object travelling at 0.1m/s collides head on with 10kg object initially at rest. Determine the velocity of each object after the impact if the collision is elastic

physics
You are told that the linear "drag coefficient" due to air resistance for a particular object is 0.64 N · s/m and the object has a mass of 0.0010 kg. Find the magnitude of the terminal velocity of this object when dropped from rest. (Assume the object's

physics
An object of mass m has an elastic collision with another object initially at rest, and continues to move in original direction but with onethird its original speed. What is the mass of the other object in terms of m?

Physics *Please Help!!!*
1. Which mathematical representation correctly identifies impulse? A. implulse= force/time B. impulse= force * time C. impulse= acceleration * time D. impulse= velocity/time 2. In a closed system, a ball with a mass of 3 kg and a momentum of 24 kg·m/s

pysc
an object A 2.5kg is traveling at 25meters per second collides head on with a 5kg mass b calculate the velocity of the 5kg mass if 1.the mass b is initially at rest 2.traveling opposite to mass A at 20m/s 3.traveling in the same direction as A at 12m/s

physics
A 5kg object moves to the right with a speed of 2m/s. It collides in a perfectly elastic collision with a 2 kg object moving to the left at 5m/s.What is the total kinetic energy after the collision? In elastic collisions KE is conserved so KE_i =KE_f

Physics
A light, ideal spring with a spring constant k = 100 N/m and uncompressed length L = 0.30 m is mounted to the fixed end of a frictionless plane inclined at an angle θ = 30.0° as shown above. Then a mass M 0.300 kg is affixed to the end of the spring and

physics
A 2.0 kg mass is moving on a frictionless airtrack. It collides into a motionless 1.5 kg mass. What is the combined speed of the two masses if they stick together on impact?

physics
A pendulum with a bob of mass 30g is lifted to height of 5.00cm above its lowest point and allowed to fall so that collides elastically with a block of mass 20g that rests on a smooth horizontal floor. The block stops 5 seconds after the collision.

Physics
A toy of mass 0.151 kg is undergoing SHM on the end of a horizontal spring with force constant k = 301 N/m . When the object is a distance 1.23×10^−2 m from its equilibrium position, it is observed to have a speed of 0.297 m/s. AWhat is the total

Physics
1 If a heavy semi truck with a mass of 20,000 kg collides with smaller two door car that has a mass of 5000 kg. Which of the following statements is true? a. The truck experiences more force than the car b. The car experiences more force than the truck***

Physics
A(n) 19 g object moving to the right at 39 cm/s overtakes and collides elastically with a 36 g object moving in the same direction at 19 cm/s. Find the velocity of the slower object after the collision. Answer in units of cm/s.

Physics
An 67.6 kg object moving to the right at 38.7 cm/s overtakes and collides elastically with a second 48.9 kg object moving in the same direction at 19.2 cm/s. Find the velocity of the second object after the collision. Answer in units of cm/s

Physics
An 67.6 kg object moving to the right at 38.7 cm/s overtakes and collides elastically with a second 48.9 kg object moving in the same direction at 19.2 cm/s. Find the velocity of the second object after the collision. Answer in units of cm/s

physics
A cart of mass M1 = 4.00 kg and initial speed = 4.00 m/s collides head on with a second cart of mass M2 = 2.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. i keep getting 2.3 m/s what am i doing wrong?

physics
a curling rock with a mass 22 kg is traveling 0 degrees at 3m/s and collides with a stationary object with the same mass the collision is a glancing one and the struck roce is moving 1m/s at 65 degrees what is the velocity after the collision

Physics
A billiard ball with mass 0.210 kg has a speed of 5.2 m/s and collides completely inelastically with another ball of the same size and mass. I understood the first part of the problem I just need help solving the second part. Another billiard ball

Are any tutors helping with Physics tonight? Help!
A cart of mass M1 = 6.00 kg and initial speed = 4.00 m/s collides head on with a second cart of mass M2 = 4.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision.

Are their any Physics tutors on here tonight?!
A cart of mass M1 = 6.00 kg and initial speed = 4.00 m/s collides head on with a second cart of mass M2 = 4.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision.

Physics
Object 1,which has a mass of 5 kg, is thrown at 10 m/s. Object 2 has a mass of 8 kg. With what speed should the second object be thrown for it to have the same momentum as Object 1? My answer: 6.25 m/s

physics
Consider an object with a mass of 12.5 kg moving at a constant speed in a circular path with a radius of m. The object makes one full revolution in seconds. Calculate the centripetal acceleration of the object. Give your answer in m/s2 and with 3

science
A minibus of mass 3000kg,travelling at a speed of 30m.s to the right,collides with a car of mass 1600kg,travelling at 16m.s to the right. After collision the car continues to travel to the right at a speed of 17,2m.s. Calculate the speed of the minibus

Physics
A cart traveling at 0.3 m/s collides with stationary object. After the collision, the cart rebounds in the opposite direction. The same cart again traveling at 0.3 m/s collides with a different stationary object. This time the cart is at rest after the

Physics
Object 1 (mass=5.5 kg) traveling in the +x direction at a speed of 12.40m/s undergoes an inelastic collision with Object 2 (mass=4.80kg) which is at rest. Object two flies off at a speed of 7.80m/s and an angle θ2=32.4 °. It is possible that Object 1

Physics
1. Will the swinging wonder ever let 2 ball bearings go in and one ball bearing out with twice the v? Why? 2. A 10.0 kg object moving to the right with a speed of 4.0 m/s collides and sticks to a 4.0 kg object moving to the left with a speed of 4.0 m/s.

physics
We release an object of mass M at zero speed at a distance of 2*10^6 Km from the center of the earth. What is the speed at which the object hits the earth? G=6.67*10^11; g= 9.8 m/s; M=5.97*10^24; r=6.3781*10^6 Suppose the mass of the object is M= 500 kg.

physics
I had wrote that was because I was told that in the beginning of the spring being wound the PE=KE. Can I check a concept question, The amount of work required to stop a moving object would be equal to the mass of the object times it intial speed due to

physics
One glider with a mass 0.2 kg and a speed of 3.5 m/s traveling east collides with another glider with mass 0.5 kg and a speed of 2.0 m/s moving west. They collide and stick together. Calculate the net mechanical energy and is it a loss or gain?

Physics
Starting from rest, a 6.70 kg object falls through some liquid and experiences a resistive (drag) force that is linearly proportional to the velocity of the object. It's measured that the object reaches half its terminal speed at 4.50 s. a) What is the

physics
An object with mass 110 kg moved in outer space. When it was at location < 11, 35, 7 > its speed was 17.5 m/s. A single constant force < 230, 420, 230 > N acted on the object while the object moved to location < 16, 41, 13 > m. What is the speed of

Physics
Multiple Choice. If all of the forces acting on an object an object are balanced (net force is zero), then: a. The object's speed will decrease b. The object's direction of motion can change, but its speed cannot C. The object is ecperiencing zero

Physics
Determine the work done by a person when lowering an object of mass 2.6 kg by a distance of 2.4 m. The person applies a force Fext such that the object moves with constant speed, i.e., without acceleration? My ans: W=F*d F = ma But it's saying constant