1. The problem statement, all variables and given/known data Calculate the force needed to accelerate a 2.0kg ball at 3.0ms^2 (A) In space, a long way from Earth. (B) On a frictionless horizontal surface, near the surface of the earth. (C) vertically upward, near the surface of the earth. 2. Relevant equations F = m*a 3. The attempt at a solution (A) F = 2.0 * 3.0 F= 6N? (B) Same as above? (C) I am confused on this one. Would it be F = m*a F = 2.0 *(9.8 - 3.0) F= 2.0 * 6.8 F= 13.6N? or F = 2.0 * 12.8 (To get from -9.8 to 3 = 12.8) F= 24.8N If those answers are wrong could anyone point me in the right direction as to what I am doing wrong? Thanks.