- #36
gijoel
- 17
- 0
My mistake 6.0x 10^2
And your attempts at answers are?barofsoap69 said:These are the questions that are being asked:
1. Differentiate between ‘speed’ and ‘velocity’. (2 marks)
2. Define the term ‘instantaneous speed’ and deduce what its value will be when the wheelchair is 5m away from the Examination Room. Justify your answer. (3 marks)
3. Using justification(s), comment on the velocity of the wheelchair as it is being pushed along the circular path. (2 marks)
4. Express the average speed of the wheel chair during its movement from the Reception area to the Examination Room. Ensure that your final answer reflects the correct number of significant digits and units of measurement. (3marks)
5. Calculate the weight of the patient. Include definition(s), formula, correct number of significant digits and units of measurement in your answer. (4 marks)
6. Would it take a larger or a smaller pulling force on the wheelchair handles to stop the wheelchair within a certain period of time if the patient were 80 kg instead of 60 kg? Justify your answer. (3 marks)
7. Explain how Newton’s Third Law of Motion applies to the wheelchair as it is pushed along the corridor.
(3 marks)
You quote "Falconi and Reshmi" a number of times, but the link is broken. You are expected to show your own work, not to produce references to someone else's.barofsoap69 said:Section A (20 marks)
1. Differentiate between ‘speed’ and ‘velocity’. (2 marks)
The difference between speed and velocity is that; speed is a scalar quantity that refers to the rate at which an object covers a distance regardless of its speed, whereas velocity is a vector quantity that refers to the rate at which an objects position changes (https://www.physicsforums.com/file:///D:/Garcia/Desktop/CQU%20Courses/Semester%202/MEDI11002/S0271038.docx#_ENREF_1 ).
Nonsense statement. A velocity cannot have a curved direction, that doesn't mean anything. The velocity can change with time so as to produce a semicircular path.barofsoap69 said:The velocity of the wheelchair is not in a straight pathway it is in a semicircular direction from the reception area to the examination room
You didn't post an answer to this.barofsoap69 said:‘instantaneous speed’ and deduce what its value will be when the wheelchair is 5m away from the Examination Room.
I do not begin to see how that could follow from the information given. Do you mean 3.1?barofsoap69 said:The average speed of the wheelchair is 31meters per second
And, as I pointed out, that answer is flatly wrong.barofsoap69 said:The reference is from the lecturer (video), I'm showing where i got the information from to prove it's not bull. The final answer is; "The difference between speed and velocity is that; speed is a scalar quantity that refers to the rate at which an object covers a distance regardless of its speed but time, whereas velocity is a vector quantity that refers to the objects speed and direction of motion "
Refer to post #41. Coaxing did not work.William White said:This is a perfect example of a physics forum thread (and it happens all the time) where people who are supposed to be trying to help are deliberately making something more difficult.
barofsoap69 said:Calculate the weight of the patient. Include definition(s), formula, correct number of significant digits and units of measurement in your answer. (4 marks)