A body is moving in a circular path of radius 20m completes one whole revolution in 10 sec. Calculate the speed of the Object.
Answers
Step-by-step explanation:
Distance=Speed×Time
=20×40=800m
Distance covered is equal to the circumference of the circular path.
Taking π=3.14 and let Radius be 'r'
=> 2×π×r = 800
=>3.14×r=800÷2
=>3.14×r=400
=>r=400÷3.14
=>r=127.39 m. [Approximately]
Answer:-The radius of the circular path is 127.39m
Hope this answer helps......#superman
Answer:pls mark as brainliest !!!
Distance in circular motion = Circumference of the circle
As we know, circumference of the circle is denoted by
2 \pi r
Distance=
2 × \frac{22}{7} × 20
= 125.7 metre
This means he completed one round in 40 seconds. Thus, he takes 40 seconds to complete one round
Now for 3 minutes= 180 seconds
now taking the ratio,
\frac{125.7}{40} = \frac{x}{180}
Thus,
\frac{125.7*180}{40}=x
Thus
x=565.7
Thus he covered a distance of 565.7 metre in 3 minutes
for displacement let's divide the covered distance by circumference
=565.7/125.7
=4.500
Now converting this in words
this means he has completed 4 rounds and have completed 1/2 round extra, he is on a point parallel to his starting point
thus he is not on his starting position, thus his displacement is not zero. Drawing a line from starting position to his current position, it will pass through the centre, it is the diameter
Displacement= 2×20
= 40m
ANS Distance covered in 3 minutes is 565.7 m and displacement is 40m