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. Furthermore, assume that the ball is whirled around a circle that has a radius of 1.92 m and that its velocity at the instant of release is directed 40.1° above the horizontal. Find the magnitude of the centripetal force acting on the ball just prior to the moment of release.

Question
Asked Oct 9, 2019
351 views

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. Furthermore, assume that the ball is whirled around a circle that has a radius of 1.92 m and that its velocity at the instant of release is directed 40.1° above the horizontal. Find the magnitude of the centripetal force acting on the ball just prior to the moment of release.

check_circle

Expert Answer

Step 1

Given information:

Mass of the ball (m) = 7.30-kg

Horizontal distance travelled by the ball (R) = 86.75 m

The angle of the initial velocity with the horizontal (θ) = 40.10

The radius of whirled circle of the ball (r) = 1.92 m

Step 2

From the equations of the projectile the total horizontal...

help_outline

Image Transcriptionclose

v2 sin20 R g Where "V" is the initial velocity "g" is acceleration due to gravity Substitute the corresponding values in the equation we get v2sin2(40.10) V2 x (0.1004) 86.75 9.81 86.75 V 29.4 0.1004

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A disk between vertebrae in the spine is subjected to a shearing force of 600 N.  Find its shear def...

A: Given

question_answer

Q: In Chapter 1.6 in the discussion of the hydrometer, it is stated: “The higher the bulb floats, the g...

A: A hydrometer device is used to determine the characteristics of a liquid. Mainly hydrometer is used ...

question_answer

Q: Mickey, a daredevil mouse of mass 20.3 g,20.3 g, is attempting to become the world's first "mouse ca...

A: Let v be the velocity of mickey, x be the distance the spring is compressed initially, k is the spri...

question_answer

Q: I’m confused, can you help me?

A: The distance from surface of Earth to telescope is 613km. Hence the total distance from center of Ea...

question_answer

Q: A bicycle wheel is mounted on a fixed, frictionless axle. A massless string is wound around the whee...

A: Given that the magnitude of angular acceleration is constant .Write the expression for angular veloc...

question_answer

Q: A bicyclist starts a timed sprint race as he passes the starting line moving at 6.0 mi/h. His accele...

A: Given:Initial velocity of the bicyclist, u = 6 mi/hAverage velocity at constant acceleration = 21 mi...

question_answer

Q: On a perfect fall day, you are hovering at rest at low altitude in a hot-air balloon. The total weig...

A: Click to see the answer

question_answer

Q: Determine the force that you have to exert on the ball to catch it. A friend drops a 0.625-kg basket...

A: Given,

question_answer

Q: A 2.40-m-long, 500 kg steel uniform beam extends horizontally from the point where it has been bolte...

A: Given values:Length of steel beam, L = 2.40 mMass of steel beam, M = 500 kgMass of worker, m = 70 kg