Assignment:
A mass (M=3kg) is placed in front of a spring with k=1200N/m, compressed d=40cm. The spring is released, shooting the mass forward from A to B (frictionless). The mass then travels along a flat surface from B to C (L=20m), with µk=0.1. At C the surface becomes frictionless and smoothly inclines upwards. The speed of the mass at point D is 0m/s.
a) What is the velocity of the mass at B?
=____________ vB
b) What is the velocity of the mass at point C?
=____________ vC
c) How high is point D above the flat surface?
HD =____________
d) Does the mass make it back to the spring?