An object of mass
m1 = 0.415 kg
starts from rest at point  and slides down an inclinesurface that makes an angle
θ = 36.0°
with the horizontal as shown. The coefficient of kineticfriction between the object and the incline surface is 0.455. Aftersliding down a distance d = 5.80 m, it makes a perfectly inelasticcollision with an object of mass
m2 = 0.645 kg
at point .
(a) Find the speed of
m1
at point  just before the collision m/s
(b) Find the energy loss during the collision. Enter themagnitude.
J
(c) After the collision, the objects travel on a horizontalsurface with a kinetic coefficient of 0.455. How long does it takeuntil the objects come to rest at point ?.
  s
