Take this only if you can finish it within one hour 30 minutes. Please answer

this question come from lesson "Energy and Momentum"

Question 17 (4 points) Two skaters are skating. Skater 1 has a mass of 100.0 kg and is skating at 5.0 m/s and skater 2 has a mass of 125 kg and is at rest initially. They collide and move together at the same speed. Determine the final velocity of the two skaters. Paragraph B I U v A/ Ev + Lato (Reco.. 19p Eq > Add a File Record Audio Record Video Question 18 (5 points) k - 250 N/m Ay WWW 10 - 30.0 A block of mass 4.0 kg is held against a spring with a spring constant 350 N/m. The block compresses the spring 35 0 cm from its equilibrium position After the block is LGQuestion 18 (5 points) k - 250 N/m WWH e = 30.0 A block of mass 4.0 kg is held against a spring with a spring constant 350 N/m. The block compresses the spring 35.0 cm from its equilibrium position. After the block is released, it travels along a frictionless surface and then up a frictionless ramp. The ramp angle of inclination is 30.0 degrees. a)Determine the elastic potential energy stored in the spring before the mass is released. b) Determine how far up the ramp the block will travel before it stops. Paragraph v B Lato (Reco... 19p Add a File Record Audio Record Video LG 1250