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Q: 1.) An automobile has tires with a radius of 0.39m. Starting from rest, it moves in a straight line…
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Q: @ B t LI C () t
A: On observing the position vs time graph initially for some time angular position is constant so…
Q: A wheel makes 4.0 rotations in 1 second, rotating at constant angular velocity. a. What is the…
A: The angular displacement is angular displacement =angular velocity x time The angular velocity is…
Q: Peter propels a penguin with mass 10.0kg from 2.50m above the ground at an angle 30.0o from the…
A: Given:- The mass of the penguin is m = 10 kg The height of the penguin above the ground is h =…
Q: The angular velocity of a process control motor is \omega (t) = (-3/2 t2- 20)Rad /s, where t is in…
A: The angular speed is given byω(t) = (-3/2t2 -20) Rad/s
Q: Kristen performs a backward flip (one revolution) in 0.75 seconds. a.) What is her average angular…
A: Given , Time taken in one backward flip is t =0.75 seconds One flip = one revolution =…
Q: Suppose a yo-yo has a center shaft that has a 0.258 cm radius and that its string is being pulled.…
A: The radius of shaft is 0.258cm
Q: 45° 10 m- A = 2 m/s₂ aA=3 m/s² 45° Given: Point A on rod AB has an acceleration of 3 m/s² and a…
A: Concept: To determine the Angular acceleration of the rod we have to calculate the angular velocity…
Q: A baseball pitching machine is designed to deliver a baseball with a ball speed of 72 mph and a ball…
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Q: A cooling fan is turned off when it is running at 950 rev/min . It turns 1100 revolutions before it…
A: Given:- A cooling fan is turned off when it is running at 950 rev/min. It turns 1100 revolutions…
Q: A Ferris wheel with radius R = 15.0 m is turning about a horizontal axis through its center in the…
A: Given that,Radius R =15 mlinear velocity of passenger V =7.40 m/ s
Q: An automobile engine slows down from 3200 rpm to 1200 rpm in 2.0 s . A.Calculate its angular…
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Q: A penny sits on a turn table 0.24 meters from the center. Bily spins the turn table at a constant…
A: (a) Since the penny is spun 3 times within 4.3s, its angular velocity will be (b) The period is the…
Q: th 0.570 m radius tires travels at 43.0 m/s. At how many radians per second are the tires rotating?…
A: GivenRadius of tire, r=0.570 mvelocity , v=43 m/s
Q: A kicker's extended leg with a length of 0.39m is swung from rest for 0.4 seconds in a counter-…
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Q: The student pulls on the string until it is completely unwound, and the string does not slip on the…
A: Mass of the disc Radius of the disc Tangential force applied Since the disc is wounded 5 times…
Q: Spin. A point on the rim of a compact disk is 6.00 [cm] from the axis of rotation. The disk is…
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Q: The target is six meters away, and I am able to consistently throw the axe with a horizontal initial…
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Q: A salad spinner accelerates from rest to 4.5 rad/s in 2.5 s. If it continues to accelerate at this…
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Q: Starting from rest , a wheel with constant angular acceleration spins up to 40 rpm in a time 't'.…
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Q: A baseball bat is swung with an angular velocity of 500°/s and has a radius of 1.2m. What is the…
A: Angular velocityω=500°/s=500×0.0175 rad/s=8.75 rad/s Radius r= 1.2 m
Q: The radius of revolution for the microcentrifuge is 8.58 cm and you need to spin at 700g. What RPM…
A:
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- A child with mass 42 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. The merry-go-round accelerates from rest up to 0.40 rev/s in 10 s. a. What is the angular acceleration of the merry-go-round? Express this in radians/second. b. What is the angular velocity at 5 s? c. Calculate the centripetal acceleration and tangential acceleration at 5 s. d. What is the total acceleration at 5 s? e. If the coefficient of static friction between the child and the surface of the merry-go-round is 0.6, does the child fall off before 5 s? Hint: To determine this, calculate the frictional force and force due to the acceleration of the merry-go-round on the child. Compare the two forces to find which is larger than the other, therefore overcomes the other.A. A large rotating cylinder uniformly increases in angular speed from rest to 0.170 rev/s in 28.0 s. What is its angular acceleration in radians per second per second?During a very quick stop, a car deceleraes at 7.00 m/s^2.a. What is the angular acceleration of its 0.280-m-radius tires, assuming they do not slip on the pavement?b. How many revolutions do the tires make before coming to rest, given their initial angular velocity is 95.0 rad/s?c. How long does the car take to stop completely?d. What distance does the car travel in this time?e. What was the car’s initial velocity?f. Do the values obtained seem reasonable, considering that this stop happens very quickly?
- A flywheel slows from 662 to 400 rev/min while rotating through 38 revolutions. a. What is the (constant) angular acceleration of the flywheel? rad/s2 b. How much time elapses during the 38 revolutions? t S aA propeller goes 1500 rpm to rest in 45 s. a. What is the acceleration? b. What is the angular displacement in the 5 seconds?The 4 cm long second hand on a clock rotates smoothly. a. What is its angular velocity? b. What is the speed of the tip of the hand?