Considere três corpos, A, B e C com as respectivas massas: mA = 2 kg, mB = 1 kg e mC = 3 kg, que são acelerados por uma força de intensidade de 18 N e que se encontram em uma superfície horizontal e lisa, conforme as duas situações apresentadas nas figuras a seguir:Determine: a) a aceleração do conjunto b)a força que o bloco B exerce em A

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)