A power drill starts from rest and underg uniform angular acceleration for a period 0.175 s until it turns at a rate of 3.00 X 1 rev/min. What is the drill's angular acceleration (ir
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![A power drill starts from rest and undergoes
uniform angular acceleration for a period of
0.175 s until it turns at a rate of 3.00 X 104
rev/min.
What is the drill's angular acceleration (in
rad/s2)?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff8657b18-ee42-4daa-902f-2c863a8b942b%2F0f6bd958-3612-44b3-a521-d16828ee70a2%2F4ic2p75_processed.jpeg&w=3840&q=75)
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- A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.10 x 10° rev/min. (a) Find the drill's angular acceleration. | rad/s² (b) Determine the angle (in radians) through which the drill rotates during this period. radA dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.79 x 10^4 rad/s to an angular speed of 3.13 × 10^4 rad/s. In the process, the bit turns through 3.01 x 10^4 rad. Assuming a constant angular acceleration, how long would it take the bit to reach its maximum speed of 8.46 × 10^4 rad/s, starting from rest?The drive propeller of a ship starts from rest and accelerates at 2.55 x 10-3 rad/s² for 2.35 x 103 s. For the next 1.68 x 10³ s the propeller rotates at a constant angular speed. Then it decelerates at 2.77 x 10-3 rad/s2 until it slows (without reversing direction) to an angular speed of 2.23 rad/s. Find the total angular displacement of the propeller. Number i Units
- A small steel ball rolls counterclockwise around the inside of a stationary 30.0-cm-diameter roulette wheel. The ball completes exactly 4 rev in 2.40 s. what is the ball's angular position at t=2.00 sec? assume thea = 2pi radA yo‑yo with a mass of 0.0850 kg and a rolling radius of r=1.60 cm rolls down a string with a linear acceleration of 5.20 m/s2. Calculate the tension magnitude ? in the string and the angular acceleration magnitude ? of the yo‑yo.A turntable rotates with a constant 2.25 rad/s² angular acceleration. After 4.50 s it has rotated through an angle of 30.0 rad. What was the angular velocity of the wheel at the beginning of this interval?
- At time t=0 a grinding wheel has an angular velocity of 27.0 rad/s . It has a constant angular acceleration of 34.0 rad/s^2until a circuit breaker trips at time t= 2.20 s . From then on, the wheel turns through an angle of 438 rad as it coasts to a stop at constant angular deceleration. a) Through what total angle did the wheel turn between t=0 and the time it stopped? Express your answer in radians. b) At what time does the wheel stop? Express your answer in seconds. c) What was the wheel's angular acceleration as it slowed down? Express your answer in radians per second^2.A child is outside his home playing with a metal hoop and stick. He uses the stick to keep the hoop of radius 45.0 cm rotating along the road surface. At one point the hoop coasts downhill and picks up speed. (a) If the hoop starts from rest at the top of the hill and reaches a linear speed of 9.40 m/s in 14.5 s, what is the angular acceleration, in rad/s2, of the hoop? rad/s2 (b) If the radius of the hoop were larger, how would this affect the angular acceleration of the hoop? The angular acceleration would decrease. The angular acceleration would increase. There would be no change to the angular acceleration.A wheel is initially at rest then rotates with a constant acceleration of 2.0 rad/s2 . What is its angular speed after it has gone through a displacement of 5.0 rad?
- With the aid of string , a gyroscope is accelerated from rest ro 32 rad/s in 0.41 s. What is the angular acceleration in radians per square seconds? How many revolutions does it go through in the process?A power drill starts from rest and undergoes uniform angular acceleration for a period of 0.175 s until it turns at a rate of 2.80 x 104 rev/min. (a) What is the drill's angular acceleration (in rad/s2)? (Enter the magnitude.) rad/s2 (b) What is the angle (in radians) through which the drill rotates during this period? (Enter the magnitude.) radA wheel rotates about a fixed axis with an initial angular velocity of 20 rad/s. During a 5.0 second interval, the angular velocity decreases to 10 rad/s. Assume the angular acceleration is constant during the 5.0 second interval. How many radians does the wheel turn through during the 5.0 s inteval?