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If the speed of the tip of the minute ha...

If the speed of the tip of the minute hand of a town clock is `1.75xx10^(-3) m//s`, then the speed of its second hand of same length will be

A

`1.7xx10^(-3) m//s`

B

`10.510^(-3) m//s`

C

`10.5xx10^(-2) m//s`

D

`17.5xx10^(-3) m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
`v_(1) = r omega _(1) and v_(2)= r omega _(2) therefore (v_(2))/(v_(1))=(omega _(2))/(omega_(1))=(T_(1))/(T_(2))`
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Knowledge Check

  • The speed of the tip of second's hand of a watch of length 1.5 cm is

    A
    0.32 cm `s^(-1)`
    B
    1 cm `s^(-1)`
    C
    0.16 cm `s^(-1)`
    D
    0.5 cm `s^(-1)`

  • The speed of the tip of a second hand of length 5 cm of a clock is ____ ms^(-1)

    A
    1
    B
    60
    C
    `5.3 xx 10^(-3)`
    D
    `3.4 xx 10^(-5)`

  • The ratio of the angular speed of the hour and the minute hand of a clock is

    A
    `1:12`
    B
    `1:6`
    C
    `1:8`
    D
    `12:1`

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