A train is rounding a circular curve whose radius is 1.89E+2 m. At one instant, the...
A train is rounding a circular curve whose radius is 1.89E+2 m. At one instant, the train has an angular acceleration of 1.21E-3 rad/s2 and an angular speed of 0.0544 rad/s. Find the magnitude of the total acceleration (centripetal plus tangential) of the train.
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A train is rounding a circular curve whose radius is 1.89E+2 m.
At one instant, the...
A model train runs on a circular track with radius 1.5 m. Its tangential velocity is...
A model train runs on a circular track with radius 1.5 m. Its tangential velocity is 2.0 m/s and it is accelerating with a tangential acceleration of 0.90 m/s2. What is the magnitude of the train’s overall acceleration? Find the angle between the overall acceleration and the centripetal acceleration.
Suppose you are driving a car in a counterclockwise direction on a circular road whose radius...
Suppose you are driving a car in a counterclockwise direction on a circular road whose radius is r 28 m/s (about 63 mi/h) 385 m (see the figure). You look at the speedometer and it reads a steady T(decreasing) (a) Constant angular speed (b) Decreasing angular speed Concepts (i) Does an object traveling at a constant tangential speed (for example, vT= 28 m/s) along a circular path have an acceleration? Yes No (ii) Is there a tangential acceleration aT when...
A racing car travels on a circular track with a radius of 200 m. If the...
A racing car travels on a circular track with a radius of 200 m. If the car moves with a constant linear speed of 51.0 m/s, find (a) its angular speed and (b) the magnitude and directions of its acceleration. (a) 0.255 rad/s; (b) 51.0 m/s2 in the direction of tangential velocity (a) 0.255 rad/s; (b) 13.0 m/s2 in the direction of tangential velocity (a) 7.25 rad/s; (b) 13.0 m/s2 in the direction of tangential velocity (a) 0.255 rad/s; (b)...
A racing car travels on a circular track with a radius of 225 m. If the...
A racing car travels on a circular track with a radius of 225 m. If the car moves with a constant linear speed of 47.0 m/s, find (a) its angular speed and (b) the magnitude and directions of its acceleration. O(a) 0.209 rad/s; (b) 9.82 m/s2 in the direction of tangential velocity i O(a) 0.709 rad/s; (b) 47.0 m/s2 in the direction of tangential velocity • (a) 0.209 rad/s; (b) 9.82 m/s2 toward the center of the track O(a) 4.79...
1. An 800 kg car travels around the edge of a circular track of radius 400...
1. An 800 kg car travels around the edge of a circular track of radius 400 m. At one point, the car accelerates around the track, increasing its speed from 40 m/s to 60 m/s over the course of 5 s. At the instant that the car reaches 50 m/s find (a) its angular velocity (b) its radial acceleration, (c) the centripetal force acting on the car, (d) the tangential acceleration of the car, and (e) the magnitude of the...
A wheel 1 m in radius starts rotating from rest with a constant angular acceleration of...
A wheel 1 m in radius starts rotating from rest with a constant angular acceleration of 4 rad/s2 At t = 2 s find: a) the angular speed of the wheel; b) the tangential speed of the wheel at the rim; c) the centripetal and tangential acceleration of the wheel at the rim; d) the angular displacement.
A planet orbits a star once every 2.90 x 10's in a nearly circular orbit of...
A planet orbits a star once every 2.90 x 10's in a nearly circular orbit of radius 1.43 x 1011 m. (a) With respect to the star, determine the angular speed of the planet. rad/s (b) With respect to the star, determine the tangential speed of the planet. m/s (C) With respect to the star, determine the magnitude and direction of the planet's centripetal acceleration. magnitude direction ---Select--- m/s2
1. When a point on the edge of a DVD (radius 6.0 cm) moves along an...
1. When a point on the edge of a DVD (radius 6.0 cm) moves along an arc of length 120 cm, through what multiple of π rad does the disk turn? 2. With an angular velocity of 3.4π rad/s, how much time is required to complete 11 complete revolutions? 3. The blades of a kitchen blender rotate counterclockwise at 2.2x10^4 rpm (revolutions per minute) a top speed. It takes the blender 2.1 seconds to reach this top speed after being...
At a certain instant of time an an automobile is rounding a curve. Its acceleration in...
At a certain instant of time an an automobile is rounding a curve. Its acceleration in its direction of motion is 2.97 m/s 2 and its centripetal acceleration is 3.861 m/s 2 . What is the angle that the total acceleration makes at that instant with respect to the direction of motion at that instant? Answer in units of ? .
A car with initial tangential speed of 10m/s accelerates on a circular track with radius of...
A car with initial tangential speed of 10m/s accelerates on a circular track with radius of 100 m and with angular acceleration of 2 rad/s^2. How long it takes for the car to have its centripetal acceleration of 9 m/s^2? This is the question in verbatim.
Suppose you are driving a car in a counterclockwise direction on a circular road whose radius is r 28 m/s (about 63 mi/h) 385 m (see the figure). You look at the speedometer and it reads a steady T(decreasing) (a) Constant angular speed (b) Decreasing angular speed Concepts (i) Does an object traveling at a constant tangential speed (for example, vT= 28 m/s) along a circular path have an acceleration? Yes No (ii) Is there a tangential acceleration aT when...
A racing car travels on a circular track with a radius of 200 m. If the car moves with a constant linear speed of 51.0 m/s, find (a) its angular speed and (b) the magnitude and directions of its acceleration. (a) 0.255 rad/s; (b) 51.0 m/s2 in the direction of tangential velocity (a) 0.255 rad/s; (b) 13.0 m/s2 in the direction of tangential velocity (a) 7.25 rad/s; (b) 13.0 m/s2 in the direction of tangential velocity (a) 0.255 rad/s; (b)...
A racing car travels on a circular track with a radius of 225 m. If the car moves with a constant linear speed of 47.0 m/s, find (a) its angular speed and (b) the magnitude and directions of its acceleration. O(a) 0.209 rad/s; (b) 9.82 m/s2 in the direction of tangential velocity i O(a) 0.709 rad/s; (b) 47.0 m/s2 in the direction of tangential velocity • (a) 0.209 rad/s; (b) 9.82 m/s2 toward the center of the track O(a) 4.79...
1. An 800 kg car travels around the edge of a circular track of radius 400 m. At one point, the car accelerates around the track, increasing its speed from 40 m/s to 60 m/s over the course of 5 s. At the instant that the car reaches 50 m/s find (a) its angular velocity (b) its radial acceleration, (c) the centripetal force acting on the car, (d) the tangential acceleration of the car, and (e) the magnitude of the...
A wheel 1 m in radius starts rotating from rest with a constant angular acceleration of 4 rad/s2 At t = 2 s find: a) the angular speed of the wheel; b) the tangential speed of the wheel at the rim; c) the centripetal and tangential acceleration of the wheel at the rim; d) the angular displacement.
A planet orbits a star once every 2.90 x 10's in a nearly circular orbit of radius 1.43 x 1011 m. (a) With respect to the star, determine the angular speed of the planet. rad/s (b) With respect to the star, determine the tangential speed of the planet. m/s (C) With respect to the star, determine the magnitude and direction of the planet's centripetal acceleration. magnitude direction ---Select--- m/s2
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