A roller coaster moves through a loop. At an angle of 60degree to the bottom of the loop it has a velocity of 14m/s. the mass of the roller coaster and riders is 750kg. the diameter of the loop is 20m. what is the force acting on thebroller coaster at an angle of 60degree to the bottom of the loop?

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