Question 2 (1 point) An object has 25 Joules of kinetic energy. If it remains at the same speed, but its mass is doubled, what is its new kinetic energy?
а
b
12.5 Joules
100 Joules
50 Joules
С

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?