Starting from rest, two skaters push off against each other on ice where friction is negligible. One is a 64.0 kg woman and one is a 93.0 kg man.  The woman moves away with a velocity of +2.83 m/s.  Find the recoil velocity of the man.  Group of answer choices

William has a mass of 59.8 kg and Anne has a mass of 42.9 kg, both of which have skates, are facing each other in a skating rink. William pushes Anne in the eastern direction at 3.89 m/s. Determine the final velocity of William. Assume that the surface is frictionless.

A squid with an initial mass of 5.15 kg is initially at rest when it ejects 0.275 kg of fluid with a velocity of 7.5 m/s. Part (a) What is the recoil velocity, in meters per second, of the squid if the ejection is done in 0.12 s and there is a 5.15-N frictional force upposing the squid's movement? Use a coordinate system in which the ink is moving in the positive direction. Part (b) What is the difference in kinetic energy, in joules, between the case when there is no friction and the case where there is friction? Ejost

Albert and his friend Isaac are standing in the middle of a sheet of ice in the student parking lot when they decide to give each other a push. If Albert has a mass of 73.6 kg and moves to the right at 1.30 m/s after the push, how fast will Isaac move if his mass is 51.8 kg? m/s

A 2000 kg car is traveling East at 45 m/s while a 1500 kg car travels North at 30 m/s.  They collide inelastically at an intersection, stick together and move as one to the Northeast.  Assuming no other significant forces, what is the velocity of the two-car combo?     v =     m/s     at    θ =     º  North of East

A boy of mass 44.1 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.2 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 11.1 m/s. Find the final velocity of the skateboard. Magnitude:

An amusement park features a set of light railcars, currently resting on a straight, level section of track. Each railcar has a mass of 18 kg. Ellen and her younger brother Tim are seated in two of these railcars, which are initially at rest with the rubber buffers just touching each other. Ellen's mass is 42 kg, while Tim's mass is 32 kg. Ellen pushes Tim's railcar so that it moves away with a speed of 3.0 m/s relative to the track. Assuming that the frictional forces on the railcars are small, how far the railcars will have travelled after 2.0 s?

A man holding a rock sits on a sled that is sliding across a frozen lake (negligible friction) with a speed of 0.490 m/s. The total mass of the sled, man, and rock is 94.0 kg. The mass of the rock is 0.270 kg and the man can throw it with a speed of 15.5 m/s. Both speeds are relative to the ground. Determine the speed of the sled (in m/s) if the man throws the rock forward (i.e., in the direction the sled is moving). m/s Determine the speed of the sled (in m/s) if the man throws the rock directly backward. m/s

A 7.500 E+3-kg truck moving east at 10.3 m/s collides with a 2.500 E+3-kg car moving west at 35.0 m/s. The collision takes place over a time interval of 0.5 s. The car and the truck stick together after the collision. Find the force (in N) of the car on the truck during the collision. Call this force positive if it points to the east, and negative if it points to the west. (Could you give an explanation on how to transfer/ convert E +3)

A boy of mass 44.5 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.1 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 11.1 m/s. Find the final velocity of the skateboard. Magnitude _______ Direction ______