What is the tension if the mass of a crate, 55 kg, is being lifted by a rope at constant speed?
I have this physics homework problem that's confusing me.
It says...
A crate, which has a mass of 55.0 kg. is being lifted straight up by a rope at a constant speed. What will be the tension in the rope?
Anybody know a way to solve this.
At first I thought, maybe Fa - mg = ma, then plug in the numbers but it doesn't work.
You are technically on the right track with your starting equation of
Fa - mg = ma
but since the crate is being lifted at constant speed, then the acceleration "a" is equal to zero.
Hence the above simply becomes
Fa - mg = o
Fa = mg = 55(9.8)
Fa = 539 N
Hope this helps.
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