A man is standing on a platform that is connected to a pulley arrangement, as the drawing shows. By pulling upward on the rope with a force P the man can raise the platform and himself. The total mass of the man plus the platform is 94.0 kg. What pulling force should the man apply to create an upward acceleration of 1.20 m/s2? ----- F=(m)(ay), right? however i see that i have two Y component accelerations, gravity, wich is -9.8, and the upward acceleration we are trying to reach, so now do i just do: a=-9.8 +1.2 = -8.6 F=(94kg)(-8.6) F=-808.4 i guess u cant have a negative? so anser is 808.4N did i do this right?