Question

A particle is moving on a circular path of radius 7 cm. What will be its displacement after making the round of half circle? Also find its displacement after making the two rounds of circle
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Answer 1

Answer:

Explanation:

FIRST CALCULATE THE CIRCUMFERENCE OF CIRCLE,

2πR,

2×7×22/7,

2×22,

44 CM,

S0,DISPLACEMENT OF HALF CIRCLE IS 44/2 CM,

22 CM,

AND,DISPLACEMENT IN TWO ROUNDS IS 44×2,

88 CM.

HOPE IT HELPS YOU.

Answer 2

Answer:

Displacement after making, the round of half circle is 14cm and two rounds of circle is zero.

Explanation:

Given a circular path of radius,  $r=7 cm$

Displacement is a vector quantity, defined as the change in position of the particle.

Therefore after making the round of half circle, the position of the particle will be at the other end of the diameter of the circle.

Therefore, the displacement after making the round of half circle is

$2\times r=2\times 7=14cm$

After making the two rounds of circle, the particle comes back to the same position, therefore the displacement is zero.