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April swims 50 m north and then turns and swims 20 m back to the south what is her velocity if it takes her 60 seconds-?
If April swam 50 M North then swam 20 M South back then her velocity would be 16.66. This is a math problem.
Three complete turns and a half turn round the clock how many seconds?
Three and a half turns of the minute hand = 3.5*60 = 210 seconds.
A car moving east at 45 kilometer per hour turns and travels west at 30 kilometer per hour What are the magnitude and direction of the change of velocity?
The change of velocity is 75 km/hr west.
What is rotating concentric cylinder viscometer?
this unit basically consist of two concentric cylinders and a small intervening annular space contains the test fluids whose viscosity is to be determined.The outer cylinder is rotated at a constant angular speed. the viscous drag due to the liquid between the cylinders produce a torque on the inner cylinder, which would rotate if it was not restrained by an equal and opposite torque developed by torsion wire. as the spring torque is proportional to the angle through which it turns, therefor the angular moment of the pointer on a fixed disk is used as a measure of viscosity.
Can the car accelerate if the speedometer of a car indicates a constant speed?
no. see the definition of acceleration. it can remain a constant speed while the velocity changes. *Edit* Actually, the answer is yes. The algebraic formula for acceleration is displacement over time but you are only thinking in terms of linear motion, or in the case of this scenario, a straight road. But when the car follows the road as it snakes or rounds a bend its acceleration is changing even if its speed is not. A more specific definition of acceleration is the change in velocity over the change in time. Velocity is a measurement of speed but with a direction and when an object goes into a circular motion path (or any motion path that isn't linear) its velocity is continually changing and a change in velocity means a change in acceleration. Plainly put, if the car turns a corner with a constant speed, the magnitude is constant but the acceleration vector is not.
Define angular velocityWhat is its SI unit?
Angular velocity is a measurement of how fast something is turning. Everyone has heard of "RPM", which stands for "Revolutions Per Minute" ... how many complete turns an object makes in one minute. That's a perfectly good measurement of angular velocity, although in Physics, angular velocity is normally given in different units. The standard unit for angular velocity is "radians per second". Each complete turn covers (2 pi) radians (same as 360 degrees). And there are 60 seconds in one minute. So if you know the RPM, you can multiply RPM by (2 pi / 60) = 0.10472 to get angular velocity in standard units. An old LP phonograph record (remember those ?) playing at 33-1/3 RPM has an angular velocity of about 3.5 radians per second. A car engine idling at 1,000 RPM is turning at about 104.7 radians per second.
How do you find the angular velocity of second hand of a watch?
The angular velocity of the second hand of a watch can be found by calculating the angle it rotates through in a given time period, typically one minute, and then converting it to radians per second. This can be done using the formula: angular velocity = (2π/60) radians/second, as the second hand completes one full rotation in 60 seconds.
A bar on a hinge starts from rest and rotates with an angular acceleration 10 6t rads2 where t is in seconds Determine the angle in radians through which the bar turns in the first 3.26 s?
To find the angle through which the bar turns, you need to integrate the angular acceleration over the time interval from 0 to 3.26 seconds. The equation for angular acceleration is 10t^2, so integrating that from 0 to 3.26 will give you the change in angular position, which is the angle through which the bar turns. After integrating, substitute t=3.26s into the result to find the angle in radians.
What is angular velocity in physics?
Angular velocity is a measure of how quickly an object is rotating around a fixed point. It is measured in radians per second and indicates the rate of change of angular displacement. The direction of angular velocity is perpendicular to the plane of rotation.
How many radians does the second hand of a clock turn through in thirty second?
The second hand of a clock completes a full revolution every 60 seconds, which is equal to 2π radians. Therefore, in 30 seconds, the second hand turns through π radians.
When body rotates the angle through which an arbitrary radius turns is called angular?
When the body rotates, the angle through which an arbitrary radius turns is called angular displacement. It is measured in radians and represents the change in direction of the radius vector as the body rotates.
A wave with frequency 10.2Hz and amplitude 42.2 mm moves in the positive x direction with a speed of 4.3 ms What is the waves angular frequency?
To calculate the angular frequency (ω) of the wave, you can use the formula ω = 2πf, where f is the frequency of the wave. Given that the frequency is 10.2 Hz, the angular frequency would be 2π * 10.2 = 64.08 rad/s.
How do you define constant angular velocity?
Assuming you mean "Constant angular velocity", let's break it down. Constant, meaning "something that does not or cannot change or vary". Velocity is distance over time, or "speed". Angular velocity is the angular distance (such as "one rotation") An example of velocity would be 60 Miles per Hour (MPH). That would be that in one hour, an object would travel 60 miles. An example of angular velocity would be 45 Degrees per Hour. For a real world example, Earth turns 1 full revolution every day. "1 revolution per day" is an angular velocity. Lets convert this to a different unit. There are 360 degrees in 1 revolution. Therefor, we can say that Earth has an angular velocity of 360 degrees per day." We can convert this unit again. There are 24 hours in one day. 360 divided by 24 = 15 degrees per hour, which is another example of angular velocity. Simply put, angular velocity is the speed at which something is rotating. In computers, angular velocity is commonly used to describe a mechanical hard disk drive. Hard drive speeds are measured in Rotations per Minute (RPM) and are commonly 4200, 5200 or 7200 RPM. The faster the speed of the hard drive, the faster it can read and write data.
At time a grinding wheel has an angular velocity of 27.0 It has a constant angular acceleration of 31.0 until a circuit breaker trips at time 2.10 From then on the wheel turns through an ang?
The initial angular velocity of the wheel is 27.0 rad/s and it has a constant acceleration of 31.0 rad/s^2 until time 2.10 s. After the circuit breaker trips, you will need to provide more information to complete the question.
What is the number of radians a wheel turns as it makes 2 revolutions?
4pi
April swims 50 m north and then turns and swims 20 m back to the south What is her velocity if it takes her 60 seconds?
.5 north
How many radians does the minute hand of a clock rotate in 1.75 hours?
Since there are 2 Pi radians in one complete turn, then the minute hand turns 1.75 * 2 Pi radians in 1.75 hours.
