# Tension of a rope problem

How much tension must a rope withstand if it is used to accelerate a 1800 kg car vertically upward at 0.60 m/s2?

could someone tell me how to start this problem? thanks so much!

Consider a free body diagram around the car. Net force = mass * accelleration. So you have the tension in the rope and gravity acting on the car, and the total of those must give you an upwards accelleration of 0.6m/s^2

i'm still confused with this problem..i thought i could just multiply 1800kg by .60 m/s^2? but i dont get the right answer...

How much tension must a rope withstand if it is used to accelerate a 1800 kg car vertically upward at 0.60 m/s2?

could someone tell me how to start this problem? thanks so much!

Is this problem neglecting air friction and mass of the rope? Also, what's pulling that rope?

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it doesn't say...its a webassign problem

it doesn't say...its a webassign problem

Ok, then what is the answer, if given? Because I got what you got too. I might be missing something

sorry...i dont have the answer either..it's due tomorrow night..hmmm...i wander why it won't work...

i'm still confused with this problem..i thought i could just multiply 1800kg by .60 m/s^2? but i dont get the right answer...

I think what Kazza is saying is $\vec{F_T} - mg = m\vec{a}$. If that's correct then you can think of a free body diagram of the rope with the upward force equal to ma, and the downward force equal to mg. But don't take my word on it Woo! I give 94.8% credit to Kazza 