Question 3.

3) A spring having a spring constant of 2.40 kN/m is compressed by 0.450 m, and a 5.00 kg mass is placed in front of it. The spring is released sending the mass up a frictionless ramp of vertical height 2.50 m. The mass slides up the ramp then across a rough horizontal surface until friction brings it to rest. The coefficient of kinetic friction of the rough horizontal surface is 0.400. dell and neswied noitali) 1087 e Initial compression is x h Frictionless a ) Find the velocity of the mass before it starts up the ramp. (4 points) b) Find the velocity of the mass at the top of the ramp, just before it reaches the rough surface. (6 points) C ) Find the horizontal distance, l, where the mass is brought to rest by friction. (4 points) oord