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.
F = m*a
The Attempt at a Solution
(A) F = 2.0 * 3.0
(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 = 2.0 * 12.8 (To get from -9.8 to 3 = 12.8)
If those answers are wrong could anyone point me in the right direction as to what I am doing wrong?