v36
v36
A
For AB, particle is ` " "` Moving in +ve X-direction with an increasing speed
B
For BC, particle is ` " "` Moving in +ve X-direction with a decreeing speed
C
For CD, particle is `" "` Moving in –ve X-direction with an increasing speed
D
For DE, particle is` " "` Moving in –ve X-direction with a decreasing speed
Text Solution
Verified by Experts
The correct Answer is:
A, B, C, D
`(A-P,B-P,C-Q,D-R) `
For AB and BC : a = slope of tangent = positive and v is positive ` rArr ` Motion in `+X -direction with increasing speed .
For CD : v is positive ` rArr ` Motion is in ` +X-direction.
a= slope of tangent= negative
` rArr overset- a ` is in -X direction .`rArr ` speed decreases . For DE : v is negative `rArr ` motion is in-X direction.
a= slope of tangent ` lt 0 " "rArr overset-a` is also in -X direction ` rArr speed increases.
For AB and BC : a = slope of tangent = positive and v is positive ` rArr ` Motion in `+X -direction with increasing speed .
For CD : v is positive ` rArr ` Motion is in ` +X-direction.
a= slope of tangent= negative
` rArr overset- a ` is in -X direction .`rArr ` speed decreases . For DE : v is negative `rArr ` motion is in-X direction.
a= slope of tangent ` lt 0 " "rArr overset-a` is also in -X direction ` rArr speed increases.
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