A clock is in x- y plane. Find angular velocity of second hand of a clock (in rad/s).

\frac{π}{30} (^i)

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\frac{π}{30} (-^j)

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\frac{π}{60} (^k)

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\frac{π}{30} (-^k)

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Solution

The correct option is D $\frac{π}{30} (-^k)$
$ω = \frac{2 π}{T} = \frac{2 π}{60}$
$\to ω = ω (-^k)$
$= \frac{π}{30} (-^k)$

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Question 2

Two clocks A and B are shown in the Figure. Clock A has an hour and a minute hand, whereas clock B has an hour hand, minute hand as well as a second hand. Which of the following statement is correct for these clocks?

(a) Time interval of 30 seconds can be measured by clock A

(b) Time interval of 30 seconds cannot be measured by clock B

(d) Time interval of 4 minutes 10 seconds can be measured by clock A

Q. A clock is in x- y plane. Find angular velocity of second hand of a clock (in rad/s).

Q. What is the direction of the angular velocity vector for the second hand of a clock going from 0 to 30 seconds?

Q. What is the angular speed of the second hand of a clock? If the second hand is

10 c m

long, then find the linear speed of its tip. (in

r a d / s

and

m / s

)

The angular velocity of a second hand of a clock is :

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A clock is in x- y plane. Find angular velocity of second hand of a clock (in rad/s).

The correct option is D π30(−^k)ω=2πT=2π60 →ω=ω(−^k) =π30(−^k)

The correct option is D $\frac{π}{30} (-^k)$
$ω = \frac{2 π}{T} = \frac{2 π}{60}$
$\to ω = ω (-^k)$
$= \frac{π}{30} (-^k)$