physics
posted by jen .
Use principles of force and kinematics to answer these:
a.
A 40 kg skater pushes on the 60 kg skater (initially at rest). As they collide, the 40 kg skater pushes on the 60 kg skater, applying a force 100 Newtons for 1.2 seconds. Find the velocity at which each of them ends up moving (they should be equal).
b.
A 60kg skater slides at 3.0 m/s toward a 40 kg skater (initially at rest). They collide and hold on, so both have the same final speed. find that speed. You don't need to know the Force and the time, it will work out.
Respond to this Question
Similar Questions

Physics
an ice skater with a mass of 80kg pushes off against a second skater with a mass of 32kg. both skaters are initially at rest. a. what is the total momentum of the system after the push off? 
Physics
Use principles of force and kinematics to answer these: a. A 40 kg skater pushes on the 60 kg skater (initially at rest). As they collide, the 40 kg skater pushes on the 60 kg skater, applying a force 100 Newtons for 1.2 seconds. Find … 
Laws of Motion
Two skaters are in the exact center of a circular frozen pond. Skater 1 pushes skater 2 off with a force of 100 N for 1.4 seconds. If skater 1 has a mass of 30 kg and skater 2 has a mass of 74 kg, a) what is the relative velocity (v1 … 
Science
A skater pushes off with one foot and then glides in a circle. Is a net force acting on the skater? 
physics
Two fi gure skaters are moving east together during a performance. Skater 1 (78 kg) is behind skater 2 (56 kg) when skater 2 pushes on skater 1 with a force of 64 N [W]. Assume that no friction acts on either skater. T / I (a) Determine … 
Physics B
A 89.2 kg ice skater, moving at 16.1 m/s, crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 8.05 m/s. Suppose the average force a skater can experience without breaking a bone is … 
physics
A skater with 60 kg mass pushes a skater of 80 kg with a 68 N force. What will be the magnitude and direction of force and acceleration of each skater? 
physics
A skater with 60 kg mass pushes a skater of 80 kg with a 68 N force. What will be the magnitude and direction of force and acceleration of each skater? 
Physics
A 63kg iceskater glides with a speed of 10 m/s toward a 14kg sled at rest on the ice. The iceskater reaches the sled and holds on to it. The iceskater and the sled then continue sliding in the same direction in which the iceskater … 
Physics
Two figure skaters are coasting in the same direction, with the leading skater moving at 4.7 m/s and the trailing skater moving at 5.7 m/s. When the trailing skater catches up with the leading skater, he picks her up without applying …