Question

In: Physics

Two masses are on a horizontal, frictionless surface. The plane of the surface is the x-y...

Two masses are on a horizontal, frictionless surface. The plane of the surface is the x-y plane. Mass m1 = 1.0kg is at rest while mass m2 = 2.0kg is moving in the positive x-direction at 15m/s. The two masses then undergo a collision and mass m2 is moving with a speed of 9.0m/s at an angle of 35 degrees after the collision.

1) What is the speed of the center of mass of the two masses before the collision?

2) What is the kinetic energy of the center of mass of the two masses before the collision?

3) What is the total kinetic energy of the two masses before the collision?

4) What is the kinetic energy of mass m1 after the collision?

5) What is the kinetic energy of mass m2 after the collision?

6) What is the total kinetic energy of the two masses after the collision?

7) What is the speed of the center of mass of the two masses after the collision?

8) What is the kinetic energy of the center of mass of the two masses after the collision?

9) Was the collision elastic, inelastic, or is there not enough information?

Solutions

Expert Solution

genius_generous answered 2 years ago
Next > < Previous

Related Solutions

Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light...
Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massive block, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding the blocks together is burned; after that happens, the block of mass 3m moves to the right with a speed of v with arrow3m = 1.70 m/s. (a) What is the velocity of the block...
Two particles of equal masses m1=m2 move on a frictionless horizontal surface in the vicinity of...
Two particles of equal masses m1=m2 move on a frictionless horizontal surface in the vicinity of a fixed force center, with potential energies U1 = 1/2kr^(2)1 and U2 = 1/2kr^(2)2. In addition they interact with each other via a potential energy U12 = 1/2αkr^2 where r is the distance between them and α and k are positive constants. (a) Find the Lagrangian in terms of the CM position R and the relative position r. (b) Write down and solve the...
An inclined plane is sliding, and accelerating, on a horizontal frictionless surface. There is a block...
An inclined plane is sliding, and accelerating, on a horizontal frictionless surface. There is a block at rest on the sloping surface, held in place by static friction through the horizontal acceleration of the system. The coefficient of static friction between the block and the inclined plane is 0.615. The slope of the incline plane is 40.5 degrees with respect to the horizontal. What is minimum acceleration of the inclined plane for the square block not to slide? What is...
An inclined plane is sliding, and accelerating, on a horizontal frictionless surface. There is a block...
An inclined plane is sliding, and accelerating, on a horizontal frictionless surface. There is a block at rest on the sloping surface, held in place by a static friction through the horizontal acceleration of the system. the coefficient of static friction between the block and the inclined plane is 0.615. the slope of the incline plane is 42.5 degrees with respect to the horizontal. a) What is the minumum acceleration of the inclined plane for the square block not to...
. Two masses travel toward each other across a horizontal, frictionless surface. They collide, resulting in...
. Two masses travel toward each other across a horizontal, frictionless surface. They collide, resulting in 100 Joules of kinetic energy being lost. Below is a list of the known quantities. Mass#1 = 5.00 kg and has an initial velocity of 10.0 m/s to the right and a final velocity of 3.00 m/s to the right. Mass#2 = unknown and has an initial velocity of 4.00 m/s to the left and a final velocity that is unknown. What is the...
Four particles are in a 2-D plane with masses, x- and y- positions, and x- and...
Four particles are in a 2-D plane with masses, x- and y- positions, and x- and y- velocities as given in the table below: m x y vx vy   1   7.6 kg -2.6 m -4.7 m 3 m/s -4.1 m/s   2   9.3 kg -3.5 m 3.6 m -4.9 m/s 5 m/s   3   8.9 kg 4.4 m -5.5 m -5.9 m/s 2 m/s   4   8.6 kg 5.4 m 2.5 m 4.2 m/s -2.9 m/s 1) What is the x position of...
1a.Find the equation of the tangent plane to the surface √ x + √y + √...
1a.Find the equation of the tangent plane to the surface √ x + √y + √ z = 4 at P(1, 1, 4). 1b.Let f be a function of x and y such that fx = 3x − 5y and fy = 2y − 5x, which of the following is always TRUE? a. (0, 0) is not a critical point of f. b. f has a local minimum at (0, 0) c. f has a local maximum at (0, 0)...
A 25-gram block is resting on a horizontal, frictionless surface and is attached to a horizontal...
A 25-gram block is resting on a horizontal, frictionless surface and is attached to a horizontal spring of k = 210 N/m. The spring is stretched so that the block is 27 cm away from the spring’s equilibrium position and released from rest. a) What is the velocity of the block when it passes through the equilibrium point? b) At what distance from equilibrium is the spring’s potential energy equal to the block’s kinetic energy? c) Suppose the block has...
Two blocks on a frictionless horizontal surface are on a collision course.One block with mass 0.25...
Two blocks on a frictionless horizontal surface are on a collision course.One block with mass 0.25 kg moves at 1 m/s to the right collides with a 0.5 kg mass at rest and the two masses stick together. What is the final speed of the blocks after the collision?           a) -0.33 m/s           b) +0.33 m/s           c) 3.27 m/s           d) 0.67 m/s           e) 0.25 m/s
If an object on a horizontal frictionless surface is attached to a spring, displaced, and then...
If an object on a horizontal frictionless surface is attached to a spring, displaced, and then released, it oscillates. Suppose it is displaced 0.125 m from its equilibrium position and released with zero initial speed. After 0.860 s, its displacement is found to be 0.125 m on the opposite side and it has passed the equilibrium position once during this interval.Find the amplitude of the motion.=________________mFind the period of the motion.=________________sFind the frequency of the motion.=_________________Hz
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT