ഹരിതമോഹനം എന്ന കഥയിൽ ഉബന്യസം തയ്യാറാക്കുക
Answers
Answer:
A body travels along a circular path.
Radius of circular path (r) = 50m
Time taken to complete half a revolution (t) = 30s
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To Find
The body's average velocity and speed.
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Solution
First, we'll deal with the average velocity.
So let's find the displacement of the body first.
We know that,
Displacement of half circle = Diameter of the circular path
(Diameter = 2 × Radius)
Displacement of the body = 2 × 50
Displacement of the body = 100 m
Average Velocity =
\dfrac{Total \: displacement \: covered}{Total \: time \: taken}TotaltimetakenTotaldisplacementcovered
Average Velocity =
\dfrac{100}{30}30100
Average Velocity =
\dfrac{10}{3}310
Average Velocity = 3.33 m/s
∴ The average velocity of the body is 3.33 m/s
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Now let's find the distance covered by the body in order to find the average speed.
Distance = Semi-perimeter of circle
Distance = πr
Distance =
\dfrac{22}{7} \times 50722×50
Distance =
\dfrac{1100}{7}71100
Distance = 157.14 m
Average Speed =
\dfrac{Total \: distance \: covered}{Total \: time \: taken}TotaltimetakenTotaldistancecovered
Average Speed =
\dfrac{157.14}{30}30157.14
Average Speed = 5.24 m/s [approx.]
∴The average speed of the body is 5.24 m/s.
∴ The average velocity of the body is 3.33 m/s
Answer:
Mam I have doubt in this sum ( Find the perimeter of a triangle whose sides are 5x²+5x+5 +3x² +8x+9 and 4x³+ 6x² -9x-17 ) .