Question

1.
A particle is moving along a circle such that it
completes one revolution in 40 seconds. In 2
minutes 20 seconds, the ratio
displacement
is
distance
1
(1) O
(2)
2
(3)
(4)
7
11​

Answer 1

Answer:

Particle completes revolution in 40 seconds.

20 minutes 20 second = 140 second = 40 × 3 + 20 second

Therefore Distance = 3 × 2πr × πr = 7πr

where as, Displacement = 2r (the other end of the diameter)

Therefore Displacement = 2r = 2

Distance 7πr 7π

Explanation:

Therefore, the player would have completes 3.5 revolutions.

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