Two particles P and Q are shot vertically upwards. Particle P is first shot up with a velocity of 40m/s. After 4s, Particle Q is also shot up. Find: a)Where the two particles meet, If at the point of meeting, P has a velocity of 15m/s. b)The velocity with which Q is shot up.(g= 10m/s)

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used 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 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

Which best represents the law of conservation of mass ?

Could someone me find the answer to this problem.