Approximately how many revolutions in 2.5 s?

Q: What is the speed of a car moving around a circle of radius 20m if its acceleration is 5m/s^2?

A: Radius of the circle is R = 20 m Centripetal acceleration of the car is ac = 5 m/s2

Q: What is the period of rotation of the earth in seconds ? T=?

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Q: A wheel is rotating at 8 radians per second, and the wheel has a 74-inch diameter. What is the speed…

A: Given: The angular speed of the object is 8 rad/s. The diameter of the wheel is 74 inch.

Q: The tires of a bicycle have a radius of 12 inches and are turning at the rate of 100 revolutions per…

A: Ans:- Image-1

Q: A wheel has a radius of 8 m. How far (path length) does a point on the circumference travel if the…

A: Given data:  Radius (r) = 8 m Angle rotated (θ) = 50 rev

Q: A bicycle with tires 50 cm in diameter travels 4.4  km How many revolutions do the wheels make?

A: Given data: The diameter of the bicycle tire, D=50 cm. The distance traveled by the tire, S=4.4 km.…

Q: the number of revolutions completed in one second is known as

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Q: An aeroplane flying at 89 m/s makes a turn of radius 914 m. By what angle will the aircraft tilt?

A: Formula of angle at which aircraft will tilt is as follows; tanθ=v2Rg…

Q: An automobile with 0.220 m radius tires travels 60,000 km before wearing them out . How many…

A: Radius (R) of tires = 0.22 m distance moved (d) = 60,000 km

Q: A compact disk 125 mm in diameter is rotating at 50 rpm. If it takes 10 complete revolutions before…

A: Newton's equation of motion for the constant circular acceleration is used. ω2=ω02+2α∆θα=ω2-ω022∆θ=0…

Q: 50 radians are equal to how many degrees?

A: In the given problem we have to convert 50 rad into degree. Relation between radian and degree is π…

Q: An object with mass 2.50 kg is moving along a circular path with a radius of 2.20m. At an instant…

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Q: When an object is in uniform circular motion, the acceleration of the object toward the center axis…

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Q: A rotating disk travels takes 0.70 s to complete its first revolution along a circular path. As the…

A: When an object rotates with a constant angular acceleration then similar to third equation of motion…

Q: The earth, with a radius of 6.4 x 106 m, rotates on its axis once a day. What is the speed of a…

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Q: A compact disc is rotating at 50 rpm. If it takes 10 complete revolutions before slowing to a stop,…

A: Given  Initial angular speed ωi=2π×5060=5.23 rad/s Angular displacement θ=2π×10=62.8 rad Final…

Q: A particle moves in accordance with the equation r = t² + t and θ = 1/6t³ where t denotes the time…

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Q: For an object undergoing a uniform circular motion with radius 6.55 mand period 1.53 sec, the linear…

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Q: The second hand on a watch has a length of 4.50 mm and makes one revolution in 60.00 s. What is the…

A: Given Data:- Length of the second hand is l=4.50 mm =4.50 mm×10-3 m1 mm=4.50×10-3 m Time for one…

Q: What is the rate of revolution [in revolutions per minute (or rpm)] of a centrifuge if a particle…

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Q: The speed of a person standing on the equator, due to the earth's rotation.

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Q: What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning…

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Q: A centrifuge is spinning at 5400rpm and the radius of the centrifuge is 14cm what is the radial…

A: The angular speed of the centrifuge is ω=5400 rpm=5400×2π60 rad/s=565.2 rad/s

Q: How many radians represent one and a half revolutions?

A: Given data:  Angular displacement (θ) = 1.5 rev Required: Angular displacement in radians

Q: A value of 1 J is equal to what?   A.1N * m^2 B.1N*M C. 1 n/m^2

A: We are taking option (B) to be 1 N·m. Joule is the SI unit of energy. The energy is equivalent to…

Q: A compact disk 145 mm in diameter is rotating at 25 rpm. If it takes 12 complete revolutions before…

A: Using the equation of rotational kinematics: where, ω  = final angular velocity ω0 = initial…

Q: A Merry-Go-Round, 2.4 m in diameter, makes 0.25 revolution every minute. What is the linear speed of…

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Q: 12–159. The small washer is sliding down the cord OA. When it is at the midpoint, its speed is 28…

A: Show the free-body diagram of the given system as in figure, Consider the projection of A onto…

Q: A toy car moves round a circular track of radius 3.5 m. The car makes one revolution in 10s. what is…

A: Given data The radius of the circular track is given as r = 3.5 m. The time taken by the car for…

Q: A Ferris wheel with a radius of 9.5 m rotates at a constant rate,completing one revolution every 36…

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Q: Find the magnitude of the instantaneous acceleration (in m/s2) of an object that moves at a constant…

A: Given The time period to complete one revolution is T = 6.59 s. The radius of the circle is r = 1.96…

Q: The velocity of an object swinging in circular motion with a radius 2 m with a rate of 5 rev/s is…

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Q: The Wheel of Fortune is divided into twelve angular sections, each of which is 30 degrees. Determine…

A: Given data: The deceleration of wheel is α=-1.19 rev/s2. The initial angular velocity is ωi=3.06…

Q: A body that begins to rotate at a uniform acceleration makes the first 21 revolutions in 33.9 s. How…

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Q: A centrifuge accelerates uniformly from rest to 13000 rpm in 180 s. A. Through how many…

A: The acceleration is uniform. So, we can calculate the average velocity as shown below.

Q: A Ferris wheel rotating at 25 rad/s slows down with a constant ate of magnitude 3.7 rad/s2. How many…

A: Given that         The wheel rotating at (ωo) = 25rad/s         The rate of rotating (α) = 3.7rad/s2…

Q: The power to electric motor rotating at 600 rpm is cut off. If the magnitude deceleration of the…

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Q: A wheel has a radius of 8 m. How far (path length) does a point on the circumference travel if the…

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Q: Describe the important concepts of circular motion?

A: When an object is observed to possess motion in circular path, then the motion so described is known…

Q: The velocity of an object swinging in circular motion with a radius 2 m with a rate of 5 rev/s is

A: Given data:  Radius (r) = 2 m Angular velocity (ω) = 5 rev/s Required: Velocity (v) of the object

Q: 5. Convert the following accelerations to rpm?. (a) 0.5 rad/s? (b) 2.75 rad/s?

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Q: A compact disk 125 mm in diameter is rotating at 50 rpm. If it takes 10 complete revolutions before…

A: Given : d = 125 mm = 0.125 m ωo = 50 rpm = 50(2π/60) = 5.236 rad/s N = 10 ω = 0 because finally the…

Q: The circumference of the earth is about  4 × 107 m. If it were possible to drive once around the…

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Q: An object moves in a circular path and rotate at a rate of 22 revolutions/s , then the periodic time…

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Q: What angle in radians is subtended by an arc 1.57 m long on the circumference of a circle of radius…

A: Given: The length (l) of the arc is 1.57 m. The radius (r) of the circle is 2.45 m. Introduction:…

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.