Question

Which of the following is not in uniform circular motion?
(Points : 1)
merry-go-round that is 10.0 m in diameter and rotating at 2 rpm

orbiting satellite that speeds up near the earth and slows down far away

CD in a CD player spinning at 45 rpm

jet fighter making a high-speed loop at 600 m/s

Answer 1

for circular motion, the speed of moving object must me constant
so here i think the CD one is correct

Answer 2

@midhun.madhu1987

Answer 3

In the figure, a washer rotates on a string (string not shown) in the circular path shown in red. Which arrow best describes the velocity vector at that instant in time?


(Points : 1)
arrow A

arrow B

arrow C

arrow D

Answer 4

sorry i cannt understand this question

Answer 5

Do you need the graph here

Answer 6

??

Answer 7

Sorry:(