a gymnast hangs by holding two rings. his arms above his head, ans eavh makes a...
Homework Answers
given that
weight of the gymnast W = mg = 700 N
angle with the vertical = 60 degrees
from the figure
2Tcos(60) = 700 N
T = 700/(2*cos(60))
T = 700 N
Add Answer to:
a
gymnast hangs by holding two rings. his arms above his head, ans
eavh makes a...
Many aspects of a gymnast's motion can be modeled by representing the gymnast by four segments...
Many aspects of a gymnast's motion can be modeled by
representing the gymnast by four segments consisting of arms, torso
(including the head), thighs, and lower legs, as in the figure
below.
Figures a and b
describe a gymnast's motion as he swings about a bar.
A side-view of the gymnast as he swings about the bar. The
gymnast's back is horizontal, his arms are vertical, his thighs are
at an angle of 60° to the horizontal, and his lower...
2. (35 number of horizontal arms attached at its upper supports a seat suspended from a...
2. (35 number of horizontal arms attached at its upper supports a seat suspended from a cable that is 5.00 m long with the upper end of the cable 123 k pts) The giant swing at a county fair consists of a vertical central shaft with a end as shown in the figure. Each arm to an arm that is 3.00 m long. The mass of the person and swing together is g. A) What is the tension in the...
In a study of the biomechanics of the tug-of-war, a 2.0-m-tall, 80.0-kg competitor in the middle...
In a study of the
biomechanics of the tug-of-war, a 2.0-m-tall, 80.0-kg competitor in
the middle of the line is considered to be a rigid body leaning
back at an angle of 30.0?
to the vertical. The competitor is pulling on a
rope that is held horizontal a distance of 1.5m from his feet (as
measured along the line of the body). At the moment shown in the
(Figure 1) , the man is stationary and the tension in the...
After rounding second base, a baseball player with a mass of 77 kg slides into third...
After rounding second base, a baseball player with a mass of 77 kg slides into third base. The coefficient of kinetic friction between the player and the ground is 0.42. What is the magnitude of the friction force acting on the player? If it takes 1.3 s for the player to come to a rest at the base, what was his velocity when he initiated his slide? Suppose you are pulling a 4.2-kg block across a rough, horizontal surface with...
A 75 kg person is crouching with his weight evenly distributed on both tiptoes. The forces...
A 75 kg person is crouching with his weight evenly distributed on both tiptoes. The forces on the skelet part of foot are shown in Fig. 12.9 below. In this position, the Achilles tendon experiences a force F., making an angle a = 59.2° with the horizontal. The tendon acts on the ankle a horizontal distance d= 9.66 cm from the point where foot touches the floor. The tibia acts on the foot with magnitude | F and makes an...
1/1 pts Question 4 A weightlifter hoists a barbell above his head. The total length of...
1/1 pts Question 4 A weightlifter hoists a barbell above his head. The total length of the bar is 2 meters. Eighty kg of welght are added to each side, with the center of the welghts lying 23 m from the outside tip of the bar on both sides If the barbell was hoisted from the very center of the bar, what would be the torque applied on each side? (lust one side, not the sum of both together) (Disregard...
1. Three children are riding on the edge of a merry‑go‑round that has a mass of...
1. Three children are riding on the edge of a merry‑go‑round that has a mass of 105 kg and a radius of 1.80 m. The merry‑go‑round is spinning at 22.0 rpm. The children have masses of 22.0, 28.0, and 33.0 kg. If the 28.0 kg child moves to the center of the merry‑go‑round, what is the new angular velocity in revolutions per minute? Ignore friction, and assume that the merry‑go‑round can be treated as a solid disk and the children...
ements Constants ents SOLUTION We will look at an example where several forces are acting on...
ements Constants ents SOLUTION We will look at an example where several forces are acting on an object, but in this case the forces are not all along the same axis. As shown in (Figure 1), a car engine with weight to hangs from a chain that is linked at point to two other chains, one fastened to the ceiling and the other to the wall. Find the tension in each of the three chains, assuming that is given and...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
1. A pole is held vertically by attaching wires at a height of 13.4 m above...
1. A pole is held vertically by attaching wires at a height of 13.4 m above the ground. The other end of each wire is anchored in the ground at a distance of 9.54 m from the base of the pole. The pole makes a right angle with the ground. What is the length of each wire? 2. A bug crawls 2.25 m along the base of a wall. Upon reaching a corner, the bug's direction of travel changes from...
Many aspects of a gymnast's motion can be modeled by
representing the gymnast by four segments consisting of arms, torso
(including the head), thighs, and lower legs, as in the figure
below.
Figures a and b
describe a gymnast's motion as he swings about a bar.
A side-view of the gymnast as he swings about the bar. The
gymnast's back is horizontal, his arms are vertical, his thighs are
at an angle of 60° to the horizontal, and his lower...
2. (35 number of horizontal arms attached at its upper supports a seat suspended from a cable that is 5.00 m long with the upper end of the cable 123 k pts) The giant swing at a county fair consists of a vertical central shaft with a end as shown in the figure. Each arm to an arm that is 3.00 m long. The mass of the person and swing together is g. A) What is the tension in the...
In a study of the
biomechanics of the tug-of-war, a 2.0-m-tall, 80.0-kg competitor in
the middle of the line is considered to be a rigid body leaning
back at an angle of 30.0?
to the vertical. The competitor is pulling on a
rope that is held horizontal a distance of 1.5m from his feet (as
measured along the line of the body). At the moment shown in the
(Figure 1) , the man is stationary and the tension in the...
After rounding second base, a baseball player with a mass of 77 kg slides into third base. The coefficient of kinetic friction between the player and the ground is 0.42. What is the magnitude of the friction force acting on the player? If it takes 1.3 s for the player to come to a rest at the base, what was his velocity when he initiated his slide? Suppose you are pulling a 4.2-kg block across a rough, horizontal surface with...
A 75 kg person is crouching with his weight evenly distributed on both tiptoes. The forces on the skelet part of foot are shown in Fig. 12.9 below. In this position, the Achilles tendon experiences a force F., making an angle a = 59.2° with the horizontal. The tendon acts on the ankle a horizontal distance d= 9.66 cm from the point where foot touches the floor. The tibia acts on the foot with magnitude | F and makes an...
1/1 pts Question 4 A weightlifter hoists a barbell above his head. The total length of the bar is 2 meters. Eighty kg of welght are added to each side, with the center of the welghts lying 23 m from the outside tip of the bar on both sides If the barbell was hoisted from the very center of the bar, what would be the torque applied on each side? (lust one side, not the sum of both together) (Disregard...
ements Constants ents SOLUTION We will look at an example where several forces are acting on an object, but in this case the forces are not all along the same axis. As shown in (Figure 1), a car engine with weight to hangs from a chain that is linked at point to two other chains, one fastened to the ceiling and the other to the wall. Find the tension in each of the three chains, assuming that is given and...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Most questions answered within 3 hours.
-
q1. Variable costs change in direct proportion to a change in
the activity level. true or...
asked 41 seconds ago -
The velocity of a particle moving along the x axis is given for
t > 0...
asked 21 minutes ago -
A 2.5 gram penny is given a charge of -4.0 *10^-9 c. How many
excess electrons...
asked 13 minutes ago -
If businesses are pessimistic, they are _____.
moving up, along the investment demand curve
more likely...
asked 20 minutes ago -
Read the information provided. Then explain which law(s)
(could be more than one law) would protect...
asked 21 minutes ago -
Write a function named getComputerinfo that displays disk usage,
memory usage, the uptime, currently logged users,...
asked 36 minutes ago -
If I could have some assistance with the following questions
that would be appreciated. If I...
asked 37 minutes ago -
Under IFRS, which of the following subtotals would be shown on
an income statement if the...
asked 32 minutes ago -
_________________ is one of the algorithms that TCP uses to
control congestion inside the network. It...
asked 49 minutes ago -
Consider an arbitrary curve of fixed length C that connects the
origin and a point a...
asked 52 minutes ago -
What will be a succesful go-to-market stratergy for Rent the Runway
if they entered the UK...
asked 55 minutes ago -
Abstract This case deals with the capital budgeting techniques
of Net Present Value (i.e. NPV) and...
asked 57 minutes ago