What is the required force to lift a suitcase 0.75 meters?

In summary, the conversation is about a physics problem involving lifting a suitcase and determining the required force. The equation for work is discussed, but there is confusion about the information given. Eventually, the first question is solved and the second question is introduced. The conversation ends with a hint that two equations should be enough to solve the problem.
  • #1
devinechels
2
0
Okay, I am really curious as to how you solve this question, I can't seem to figure it out. I am sure most of you will think it's a piece of cake, but I'm not a physics person at all :p

If the suitcase was lifted 0.75 meters, how much force was required? (Hint: Use the equation for "work")

But see, the equation for work is Work= force x distance...and so there is not enough information? I don't know, I just can't wrap my head around this one, I have been thinking about it for awhile, and now it's really bothering me. That would make my day if someone knew how to do it, thanks!
 
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  • #2
Oh wow, I feel dumb. It was a continuation of another question >.< so sorry. Okay, so the first question was "15 J/s of power were needed to lift a suitcase into the trunk of a car in 2.8 seconds. How much work was done?" for that, I got 5.4 J because 15 J/s divided by 2.8s which is W= p divided by t. So now, do I need to do F= w/d? :blushing:
 
  • #3
The second question can be solved without referring to the first.
Work Done = Change in Gravitational Potential Energy
Work Done = F*s
This two equation should be sufficient enough...
 

FAQ: What is the required force to lift a suitcase 0.75 meters?

What is the definition of work?

Work is defined as the amount of force applied to an object multiplied by the distance the object moves in the direction of the applied force.

What is the formula for calculating work?

The formula for calculating work is W = F * d, where W is work, F is force, and d is distance.

How is work related to power?

Power is the rate at which work is done. It is calculated by dividing work by time, or P = W / t. Therefore, the higher the power, the faster work is being done.

What is the unit of measurement for work and power?

The unit of measurement for work is joules (J), and the unit of measurement for power is watts (W).

Can work and power be negative?

Yes, work and power can be negative if the force and displacement are in opposite directions. This means that the object is losing energy rather than gaining it.

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