3) An object with mass of m is sliding down of a incline firctionless surface with hight H about 70-m far from the horizental road. About 60 meter of the road is oily with friction coefficient of -0.05 and about 80-m of the road is wet with =0.25 and the last 100-m of the road is dry and has a friction coefficient of =0.6. a. What would be the angle e, if the object come to the rest at end of the dry road. b. What would be the angle e, if the objec stop after midway in dray road and at beginning of the dry road. c. If the incline part has akinetic friction of k, and the angle of the incline road equal the same angle in the part a, what would be the value if the object stop at midway of dry road. H e 70-m 100-m Dry p=0.6 80-m Wet 60-m Oily H=0.25 H=0.05