DOMJSONAppTeXFocusTest Problem 2.03 A particle at t 1 = -2.5 s is at x 1 = 4.4 c
ID: 1327981 • Letter: D
Question
DOMJSONAppTeXFocusTest
Problem 2.03
A particle at t1 = -2.5 s is at x1 = 4.4 cm and at t2 = 5.0 s is at x2 = 8.9 cm .
Part A
What is its average velocity over this time interval?
Express your answer to two significant figures and include the appropriate units.
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Part B
Can you calculate its average speed from these data?
Can you calculate its average speed from these data?
1.8cms
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Correct
Part C
Why?
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Honors Physics 15-16
Signed in as Brooke Palmer
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Speed and Velocity
Problem 2.03
ResourceseTextConstantsStudy Area
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Problem 2.03
A particle at t1 = -2.5 s is at x1 = 4.4 cm and at t2 = 5.0 s is at x2 = 8.9 cm .
Part A
What is its average velocity over this time interval?
Express your answer to two significant figures and include the appropriate units.
SubmitHintsMy AnswersGive UpReview Part
Incorrect; Try Again; 8 attempts remaining
Part B
Can you calculate its average speed from these data?
Can you calculate its average speed from these data?
v¯ =1.8cms
SubmitHintsMy AnswersGive UpReview Part
Correct
Part C
Why?
Essay answers are limited to about 500 words (3800 characters maximum, including spaces).
3800 Character(s) remaining
SubmitHintsMy AnswersGive UpReview Part
Provide FeedbackContinue
yes noof 0
Correct. No additional followup.
Honors Physics 15-16
Signed in as Brooke Palmer
Help
Close
Speed and Velocity
Problem 2.03
ResourceseTextConstantsStudy Area
« previous 3 of 9 next »
Explanation / Answer
A) average velocity = displacement/time taken = (8.9-4.4)/(5-2.5) = 1.8 cm/s
B) average speed is = disatance travelled /time taken = 1.8 cm/s
C) here average speed and average velocity both are same because in straight line motion ..distance travelled = displacement covered
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