Rope tension question

[PearlyD]

1. The problem statement, all variables and given/known data
How much tension must a rope withstand if it is used to accelerate a 1050kg car horizontally at 1.20 m/s2? IGNORE FRICTION!



3. The attempt at a solution
What i did was
T-Fg=ma
T-mg=ma
T-1050(9.8)=1050(1.20)
T-10290=1260
T=1.15x10 to the power of 4
But thats not the answer the answer is 1.26x to the power of 3kg
What did i do wrong?

[ideasrule]

Why are you including gravity? It's not as if you're lifting the car up.

Try drawing a free-body diagram and writing out Newton's second law TWICE, once for the y direction and once for the x direction.

[PearlyD]

Why are you including gravity? It's not as if you're lifting the car up.

Try drawing a free-body diagram and writing out Newton's second law TWICE, once for the y direction and once for the x direction.

Sorry i made a dumb mistake!
its been a long day and i was for some reason including gravity in alot of things that i shouldn't
i got the question now.
thanks for replying anyways:)