A53.0-kg skater is traveling due east at a speed of 2.90 m/s. a 72.0-kg skater is moving due south at a speed of 6.20 m/s. they collide and hold on to each other after the collision, managing to move off at an angle south of east, with a speed of vf. find (a) the angle and (b) the speed vf, assuming that friction can be ignored.

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings