1. The problem statement, all variables and given/known data The same constant force is used to accelerate two carts of the same mass, initially at rest, on horizontal frictionless tracks. The force is applied to cart A for twice as long a time as it is applied to cart B. The work the force does on A is WA; that on B is WB. Which statement is correct? a.WA = WB. b.WA = https://www.physicsforums.com/x-apple-ql-id://75E1D3CA-C6B4-441B-A5A4-36B84CE66FF0/x-apple-ql-magic/C3C64FB0-9E65-46A8-9150-27D9512B39A1.pdf [Broken]WB. c.WA = 2 WB. d.WA = 4 WB. e.WB = 2WA. 2. Relevant equations W = F * d * cos(theta) x= vot + 0.5 *a * t^2 3. The attempt at a solution The answer is D, but I don't know where to start to get the answer d. I thought since it has same mass and acceleration, twice of time will just make it twice of work. Can anyone help me explaining this with equation??