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What is the speed of a sweep-second if the length is 2 cm and the hand is at 6'o clock mark?
Wiki User
∙ 14y ago
It doesn't matter where it is on the clock. If the clock is working properly, the speed of the hand is constant.
The hand's angular speed is 360 degrees per minute = 6 degrees per second.
For the linear speed, the tip of the second-hand revolves in a circle whose circumference is
(2 pi) times (length of the hand) = 4 pi centimeters.
It revolves once per minute. So the speed of the tip is (4 pi) cm/minute, or (240 pi) cm/hour.
In numbers, the speed at the tip is:
12.6 cm/minute
2.09 mm/sec
7.54 meters/hour
0.000469 mile/hour
593.7 feet/day
12.593 furlongs/fortnight.
Notice that this is the speed at the second-hand's tip. Other points on it travel slower.
The closer the point is to the center, the slower its speed is. At the center, it spins, but
the linear speed is zero.
Wiki User
∙ 14y ago
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What is the speed of a clock hand?
The speed of a clock hand depends on what the clock hand indicates the second hand is 2pi per 60seconds, the minute hand is 2pi per 3600 seconds and the hour hand is 2pi per 216000 seconds.
What is the rotational speed of the second hand on a clock that measures the seconds?
It takes 1 minute to rotate 1 time.
What does the small hand on the clock mean?
what does the small hand on the clock mean
What length of time passes when the hour hand moves ina quarter turn?
On a normal, 12-hour clock, that takes 3 hours. On a military, 24-hour clock, it takes 6 hours.
How long does it take for the second hand of a watch to move 1 micron?
The second hand makes one full revolution in 60 seconds. The distance travelled by the tip depends on the length of the second hand - this is the radius of the circle. For example, for a 10-centimeter second-hand (the clock has a diameter of about 20 centimeters - that's a clock like you would typically see on a wall), the speed of the second-hand's tip is (2 x pi x radius) / 60 seconds = 2 x 3.14 x 10 / 60 or about 1.05 cm/second.
What is the speed of a clock hand?
The speed of a clock hand depends on what the clock hand indicates the second hand is 2pi per 60seconds, the minute hand is 2pi per 3600 seconds and the hour hand is 2pi per 216000 seconds.
If the length of the minute hand of a clock is 5cm how can you calculate its speed?
The minute hand traces its path around the clock once in an hour. The distance travelled by the tip of the hand in this time is 2 x pi x 5cm.The speed is then 10pi cm/hour, which is 8.73 x 10-5 ms-1.
What is the speed of a clock's second hand?
A clock's second hand makes one complete revolution each minute. Thus, by definition, it is rotating at one revolution per minute or one RPM. That's its "rotational velocity" and it is the same no matter how big or small the clock might be. The actual velocity that the tip of the second hand might trace out as it revolves around the center of the clock will vary with the length of the second hand. The longer the hand, the faster the tip moves around the circumference.
How do you write a calculation for the speed of a minute hand on a clock?
its formula is 2pi r
The length of seconds hand of a clock is 8 cm the speed of tip of seconds hand is?
A clock hanging on a wall has the following dimensions: o The minute and second hand are 15 cm in length o The hour hand is 8 cm long o The clock is centered 3 m above the ground a)​For each of the hands, find the equation of the height above the ground of the tip of its hand over time. For convenience, use t (min) and h (cm), and assume that the starting time is midnight. b) ​Find the height of the tip of each of the hands at 1:50:35 a.m.
What is the speed of a clock's minute hand?
it moves at one click every 60 seconds
What does o clock means?
it meas the clock hand it meas the clock hand it meas the clock hand
Which hand is the hour hand on a clock?
The short hand is the hour hand on a clock.
What is the Little hand on the clock?
The little hand on the clock is known as the hour hand.
What is the angular acceleration of the minute hand of a clock?
The hands of a clock move at a constant speed, not slowing or speeding up. Therefore, the acceleration is a constant 0 rad/s2
What is the rotational speed of the second hand on a clock that measures the seconds?
It takes 1 minute to rotate 1 time.
A stopwatch is generally a more precise tool for measuring a length of time compared to the second hand of a wall clock?
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