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If a mass of 2.0 kg is lifted through a height of 5.0 m, what force does it require to lift it at constant speed?
 one year ago
 one year ago
If a mass of 2.0 kg is lifted through a height of 5.0 m, what force does it require to lift it at constant speed?
 one year ago
 one year ago

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apple_piBest ResponseYou've already chosen the best response.2
Doesn't matter how high its lifted. The gravitational force experience = mass * acc. due to gravity. To balance this, an equal force in the opposite direction is required. So first calculate the gravitational force
 one year ago

amishraBest ResponseYou've already chosen the best response.0
Gravitational force is 9.81 m/s^2 ? If so, Then we just use f=ma like F= 2*9.81 ? Is this correct?
 one year ago

apple_piBest ResponseYou've already chosen the best response.2
Wait... your question is what force is needed to keep it stationary or at constant speed. If stationary...do what I told you If constant speed, you need a net force of 0
 one year ago

apple_piBest ResponseYou've already chosen the best response.2
but yeah that's correct
 one year ago

amishraBest ResponseYou've already chosen the best response.0
Wait, what force is needed to lift the object, assuming that we are moving at constant speed. So the force should come out to be negative right?
 one year ago

apple_piBest ResponseYou've already chosen the best response.2
Lift the object at constant speed..? Force is a vector unit so depending on which direction you put it could be pos or neg
 one year ago

amishraBest ResponseYou've already chosen the best response.0
That's the question :/ Okay, thank you so much! :D
 one year ago
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