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Starting from rest, the boy runs outward in the radial direction from the center of the...
A boy is running outwards at a constant speed of 2 m/s along a radial line...
A boy is running outwards at a constant speed of 2 m/s along a radial line on a merry-go-round platform. The platform is rotating at the rate of 20 revolutions per minute. What is the magnitude of the acceleration (in m/s2) acting on the boy when he is 1m away from the centre?
7P A n a r The position of a block moving outward along the slot in...
7P A n a r The position of a block moving outward along the slot in the platform is r = 0.022 t^4 m/s where r is in m and t is in seconds. The platform angular velocity increases at a constant rate of 0.5 rad/s/s. If the block and platform start from rest at r = 0 (the center), determine the magnitudes of the block (a) velocity and (b) acceleration when the block is at position r = 8...
A point on a rotating turntable 18.5 cm from the center accelerates from rest to a...
A point on a rotating turntable 18.5 cm from the center accelerates from rest to a final speed of 0.710 m/s in 1.75 s. At t = 1.21 s, find the magnitude and direction of each of the following. (a) the radial acceleration m/s2 toward the center away from the center in the direction of the rotation in a direction opposite to the rotation (b) the tangential acceleration m/s2 toward the center away from the center in the direction of...
A point on a rotating turntable 19.0 cm from the center accelerates from rest to a...
A point on a rotating turntable 19.0 cm from the center accelerates from rest to a final speed of 0.620 m/s in 1.70 s. At t = 1.22 s, find the magnitude and direction of each of the following. (a) the radial acceleration m/s2 toward the center away from the center in the direction of the rotation in a direction opposite to the rotation (b) the tangential acceleration m/s2 toward the center away from the center in the direction of...
A point on a rotating turntable 17.5 cm from the center accelerates from rest to a...
A point on a rotating turntable 17.5 cm from the center accelerates from rest to a final speed of 0.780 m/s in 2.00 s. At t 1.24 s, find the magnitude and direction of each of the following. (a) the radial acceleration 0.134 Your response is off by a multiple of ten. m/s2 toward the center away from the center in the direction of the rotation in a direction opposite to the rotation (b) the tangentia acceleration 0.39 m/s2 toward...
A CD with a diameter of 12.0 cm starts from rest and with a constant angular...
A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.0 rad/sec2 acquires an angular velocity of 5.0 rad/sec. The CD continues rotating at 5.0 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular acceleration. What is the radial acceleration of a point 4.0 cm from the center at the time 2.0 seconds from the start? a. 0.28 m/s2 b. 0.16 m/s2 c. 0.30...
The platform shown below rotates at constant rate of 6 rad/s. The block moves outward with...
The platform shown below rotates at constant rate of 6 rad/s.
The block moves outward with a speed (r,dot) that varies with
respect to time. If the block starts from rest at the center of the
platform, determine the magnitude of its acceleration (in
meters/second^2) when t = 1 second.
Please use four significant figures in the final answer. Thank
you!
The platform shown below rotates at constant rate of 6 rad/s. The block moves outward with a speed (r,dot)...
A disk of radius 1.5m initially at rest begins rotating about its center with constant angular...
A disk of radius 1.5m initially at rest begins rotating about its center with constant angular acceleration of 0.2 rad/s2. Calculate the following: a) The angular velocity of the disk after 4s. b) The linear velocity of a point on the rim of the disk after 4s. c) The amount of rotation after 4s.
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
The platform shown below rotates at constant rate of 6 rad/s. The block moves outward with...
The platform shown below rotates at constant rate of 6 rad/s. The block moves outward with a speed (r,dot) that varies with respect to time. If the block starts from rest at the center of the platform, determine the magnitude of its acceleration (in ) when t = 1 second. r = (4t)m/s 0 ) = 6 rad/s r
A point on a rotating turntable 17.5 cm from the center accelerates from rest to a final speed of 0.780 m/s in 2.00 s. At t 1.24 s, find the magnitude and direction of each of the following. (a) the radial acceleration 0.134 Your response is off by a multiple of ten. m/s2 toward the center away from the center in the direction of the rotation in a direction opposite to the rotation (b) the tangentia acceleration 0.39 m/s2 toward...
The platform shown below rotates at constant rate of 6 rad/s.
The block moves outward with a speed (r,dot) that varies with
respect to time. If the block starts from rest at the center of the
platform, determine the magnitude of its acceleration (in
meters/second^2) when t = 1 second.
Please use four significant figures in the final answer. Thank
you!
The platform shown below rotates at constant rate of 6 rad/s. The block moves outward with a speed (r,dot)...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
The platform shown below rotates at constant rate of 6 rad/s. The block moves outward with a speed (r,dot) that varies with respect to time. If the block starts from rest at the center of the platform, determine the magnitude of its acceleration (in ) when t = 1 second. r = (4t)m/s 0 ) = 6 rad/s r
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