Physics, asked by anitabhambu712, 2 months ago

2. A boy running on the circulare path of radius
35cm completes half circle. Find distance and
displacement​

Answers

Answered by AestheticSoul
5

Given :

• A boy is running on a circular path and he completes half the circle.

• Radius of the circular path = 35 cm

To find :

• Distance travelled by the boy

• Displacement of the boy

Solution :

★ Distance is the path travelled by an object.

As the boy has completed half the circle(semicircle), it means that the distance travelled by the boy is of πr.

\implies \sf  \dfrac{22}{7} \times 35

\implies \sf 22 \times 5

\implies \sf 110

Therefore, the distance travelled by the boy is 110 m.

★ Displacement is the shortest distance travelled by an object or the path travelled by an object in a particular direction.

The shortest distance would be the diameter which will connect the two ends:

→ Diameter = 2 × radius

→ Diameter = 2 × 35

→ Diameter = 75 m

→ The displacement is 75 m.

Extra Information :-

★ Displacement :-

  • It is a vector quantity which means it has both direction and magnitude. Displacement without direction is known as distance.
  • It's S.I. unit is m.
  • It's CGS unit is cm.

★ Distance :-

  • It is a scalar quantity which means it has only magnitude but no direction.
  • It's S.I. unit is m.
  • It's CGS unit is cm.
Answered by ronalsamaddar
1

Explanation:

❁ Distance is the path travelled by an object.

As the boy has completed half the circle(semicircle), it means that the distance travelled by the boy is of πr.

22/7 × 35 = 110

Therefore, the distance travelled by the boy is 110 m.

❁ Displacement is the shortest distance travelled by an object or the path travelled by an object in a particular direction.

The shortest distance would be the diameter which will connect the two ends:

→ Diameter = 2 × radius

→ Diameter = 2 × 35

→ Diameter = 75 m

→ The displacement is 75 m.

hope it helps you

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