A hammer thrower accelerates the hammer (mass = 7.30 kg) from rest within four full turns...
A hammer thrower accelerates the hammer (mass = 7.30 kg) from rest within four full turns (revolutions) and releases it at a speed of 27.7 m/s
A.) Assuming a uniform rate of increase in angular velocity and a horizontal circular path of radius 1.30 m , calculate the angular acceleration.
B.) Calculate the (linear) tangential acceleration.
C.) Calculate the centripetal acceleration just before release.
D.) Calculate the net force being exerted on the hammer by the athlete just before release.
E.) Calculate the angle of this force with respect to the radius of the circular motion.
Homework Answers
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A hammer thrower accelerates the hammer (mass = 7.30 kg) from
rest within four full turns...
1. In a track and field event, a hammer thrower accelerates the hammer (mass = 7.30...
1. In a track and field event, a hammer thrower accelerates the hammer (mass = 7.30 kg) from rest within four full turns (revolutions) and releases it at a speed of 22.0 m/s. Assuming a uniform rate of increase in angular velocity and a radius of 1.30 m, calculate the angular acceleration.
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled...
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground some distance away. The world record for the horizontal distance is 86.75 m, achieved in 1986 by Yuriy Sedykh. Ignore air resistance and the fact that the ball was released above the ground rather than at ground level....
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled...
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground some distance away. The world record for the horizontal distance is 86.75 m, achieved in 1986 by Yuriy Sedykh. Ignore air resistance and the fact that the ball was released above the ground rather than at ground level....
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled...
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground some distance away. The world record for the horizontal distance is 86.75 m, achieved in 1986 by Yuriy Sedykh. Ignore air resistance and the fact that the ball was released above the ground rather than at ground level....
The hammer throw is an Olympic event where a 7.5 kg metal ball is attached to a 1.2 m long wire, as shown in the diagra...
The hammer throw is an Olympic event where a 7.5 kg metal ball is attached to a 1.2 m long wire, as shown in the diagram. One such competitor was observed to swing the hammer around in a horizontal circle with an average angular acceleration a = 5.6 rad/s?. After 3 seconds the hammer was released. (a) Calculate the angular velocity and tangential speed of the metal ball just before it is released. (b) Calculate the number of revolutions the...
Starting from rest, a discus thrower accelerates a discus to a final angular velocity of 13.1...
Starting from rest, a discus thrower accelerates a discus to a final angular velocity of 13.1 rad/s in a time of 0.286 seconds before releasing it. If her arm extends 0.625 m from her body, find the tangential acceleration of the discus.
2 Hammer Throw: 10 pts Remember this: In Men's Hammer Throw at the Olympics a 16...
2 Hammer Throw: 10 pts Remember this: In Men's Hammer Throw at the Olympics a 16 pound ball (the ham- mer) is attached to a wire that's ap- proximately 4 ft long and whirled around a circle and let go. Olympians spin their bodies incredibly fast- during their last "wind" before release they spinning at less than a second per revolution. For the men's sport, given a few facts Figure 3: 2015 Big Ten Outdoor we're going to find out...
A bicycle slows down uniformly from an initial velocity vi = 8.70 m/s to rest over a distance of 125 m.
1. A bicycle slows down uniformly from an initial velocity vi = 8.70 m/s to rest over a distance of 125 m. Each wheel has an overall diameter of 690 cm. You can assume that the wheels roll without slipping. (a) Calculate the angular speed of the wheels at the initial instant (t = 0). (b) Calculate the total number of revolutions each wheel rotates before coming to rest. (c) Calculate the angular acceleration of the wheel (d) Calculate the time it takes to...
Question 7 is related to the force vs mass graph that is provided and the first...
Question 7 is related to the force vs mass graph that is
provided and the first section of the excel sheet. Question 3 has
to do with the force bs acceleration graph and second section of
the excel sheet. The first two files are showing the equations that
are supposed to be used to find these answers. Any help would be
greatly appreciated.
I
mainly need assistance on number 1 and 2 now. The question with the
free body diagram...
how to find abs error of time 25 ? help me fill out the blanks and...
how to find abs error of time 25 ?
help me fill out the blanks and show calculation of F
centripetal...
Centripetal Force and Acceleration For a body in motion to ch force on a body is in the sa acceleration in that the speed i direction opposite to that of the velocit undergoing negative acceleration. In thes speed, not direction. In this lab we lo wdy in motion to change either its speed or direction, a force is required....
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground some distance away. The world record for the horizontal distance is 86.75 m, achieved in 1986 by Yuriy Sedykh. Ignore air resistance and the fact that the ball was released above the ground rather than at ground level....
The hammer throw is an Olympic event where a 7.5 kg metal ball is attached to a 1.2 m long wire, as shown in the diagram. One such competitor was observed to swing the hammer around in a horizontal circle with an average angular acceleration a = 5.6 rad/s?. After 3 seconds the hammer was released. (a) Calculate the angular velocity and tangential speed of the metal ball just before it is released. (b) Calculate the number of revolutions the...
2 Hammer Throw: 10 pts Remember this: In Men's Hammer Throw at the Olympics a 16 pound ball (the ham- mer) is attached to a wire that's ap- proximately 4 ft long and whirled around a circle and let go. Olympians spin their bodies incredibly fast- during their last "wind" before release they spinning at less than a second per revolution. For the men's sport, given a few facts Figure 3: 2015 Big Ten Outdoor we're going to find out...
1. A bicycle slows down uniformly from an initial velocity vi = 8.70 m/s to rest over a distance of 125 m. Each wheel has an overall diameter of 690 cm. You can assume that the wheels roll without slipping. (a) Calculate the angular speed of the wheels at the initial instant (t = 0). (b) Calculate the total number of revolutions each wheel rotates before coming to rest. (c) Calculate the angular acceleration of the wheel (d) Calculate the time it takes to...
Question 7 is related to the force vs mass graph that is
provided and the first section of the excel sheet. Question 3 has
to do with the force bs acceleration graph and second section of
the excel sheet. The first two files are showing the equations that
are supposed to be used to find these answers. Any help would be
greatly appreciated.
I
mainly need assistance on number 1 and 2 now. The question with the
free body diagram...
how to find abs error of time 25 ?
help me fill out the blanks and show calculation of F
centripetal...
Centripetal Force and Acceleration For a body in motion to ch force on a body is in the sa acceleration in that the speed i direction opposite to that of the velocit undergoing negative acceleration. In thes speed, not direction. In this lab we lo wdy in motion to change either its speed or direction, a force is required....
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