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Grade: 9

                        

Radius=10cm Time=45sec Uniform speed=????????????????????????????????????????????????????

7 months ago

Answers : (3)

Arun
25359 Points
							
Dear student
 
Question is not clear. Please post proper question or attach an image. I will be happy to help you
7 months ago
Jyothi sri
13 Points
							
radius is 10cm = 0.1 m
so, circumference = 2*22/7*0.1= 44/70 m
now, the distance covered by the object is the circumference as it is not mentioned about number of rounds. so it is assumed that the object moved for 1 round. using speed= distance/time formula , we get
speed= 44/70 *1/45= 0.0139 m/s {approx.}
7 months ago
Ayush_Deep
120 Points
							
Since the particle moves with constant speed.
Total time taken to complete one revolution is 45 sec
Total distance traveled in one revolution is=2πr
Uniform speed = 2πr/45
=      20π/45 cm/sec
=     1.39 cm/sec
Hope you got your answer
 
7 months ago
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