A woman of 60 kg mass jumps with stiff legs from a table of 1 m...
A woman of 60 kg mass jumps with stiff legs from a table of 1 m height onto a hard floor tile. During the collision, a deceleration to a state of rest occurs in a time interval of 0.005 s. Calculate: (a) the average force exerted on each foot by the ground; (b) the distance traveled by the body during the collision.
Homework Answers
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of...
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of 0.790 m, and immediately jumps back up into the air. While she is in contact with the ground during the time interval 0 < t < 0.800 s, the force she exerts on the floor can be modeled using the function F = 9,200t − 11,500t2 where F is in newtons and t is in seconds. (a) What impulse (in N · s) did...
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of...
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of 0.650 m, and immediately jumps back up into the air. While she is in contact with the ground during the time interval 0 < t < 0.800 s, the force she exerts on the floor can be modeled using the function F = 9,200t − 11,500t2 where F is in newtons and t is in seconds. (a) What impulse (in N · s) did...
A woman of mass 50 kg jumps off the bow of a 60 kg canoe that...
A woman of mass 50 kg jumps off the bow of a 60 kg canoe that is intially at rest. If her velocity is 4.5 m/s to the right, what is the velocity of the canoe after she jumps? Answer in units of m/sˆı.
A very large pumpkin with a mass of 31.0 kg is released from rest from a...
A very large pumpkin with a mass of 31.0 kg is released from rest from a certain height and hits the ground. During the collision with the ground, the pumpkin comes to rest in a time of 0.040s. The average force exerted on the pumpkin by the ground is +12,000 N, where the upward direction is taken to be the positive direction. a. With what velocity did the pumpkin hit the ground? Assume that the only force acting on the...
a person jumps from the roof of a house 2.8 m high when he strikes the...
a person jumps from the roof of a house 2.8 m high when he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 m if the mass of his torso ( excluding legs ) is 42 kg. find his velocity before his feet strike the ground the average force exerted
This problem is taken from Ahlborn's Zoological Physics, P 5.2. Two young people jump down from...
This problem is taken from Ahlborn's Zoological Physics, P 5.2. Two young people jump down from a height of h = 2.0 m onto the forest floor which has a mud hole and a rocky flat. The boy (M = 70 kg) lands with stiff legs on the muddy ground, which "gives" so that he depresses the ground by Delta_y = 5 cm when being decelerated from the impact velocity U_0 to 0. Determine the impact speed U_0. Calculate the...
(A). Calculate the impulse imparted to a 70-kg person landing on a firm ground after jumping...
(A). Calculate the impulse imparted to a 70-kg person landing on a firm ground after jumping from a height of 5.0 m. Then estimate the average force exerted on the person's leg if the landing is (b) stiff-legged and (c) with bent legs. in (b) assume the center of mass of the body moves 1.0 cm during impact and in (c), about 50 cm.
A person of mass 60 kg jumps from a height of 3 m. She lands on...
A person of mass 60 kg jumps from a height of 3 m. She lands on her feet but her knee joints each compress by 0.5 cm. What force did she put on her knees?
i got 1.4 but it was incorrect and i am not sure why. Please help! READING 2 Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress...
i got 1.4 but it was incorrect
and i am not sure why. Please help!
READING 2 Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has...
Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example,...
Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has an ultimate compressive strength of 1.6x104N/cm2 [8]. Consider a person who falls from a height to the...
This problem is taken from Ahlborn's Zoological Physics, P 5.2. Two young people jump down from a height of h = 2.0 m onto the forest floor which has a mud hole and a rocky flat. The boy (M = 70 kg) lands with stiff legs on the muddy ground, which "gives" so that he depresses the ground by Delta_y = 5 cm when being decelerated from the impact velocity U_0 to 0. Determine the impact speed U_0. Calculate the...
i got 1.4 but it was incorrect
and i am not sure why. Please help!
READING 2 Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has...
Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has an ultimate compressive strength of 1.6x104N/cm2 [8]. Consider a person who falls from a height to the...
Most questions answered within 3 hours.
-
Does smoking hurt the lungs of children’s who are exposed to
adult smoking?
Forced vital capacity...
asked 1 hour ago -
EXPLAIN HOW NEGATIVE AFFECTIVITY IS RELATED TO JOB SATISFACTION.
INCLUDE AN EXAMPLE. MUST BE ANSWERED TWO...
asked 1 hour ago -
On December 31, 2019, Lincoln Inc. sold a used industrial crane
for $660,000 cash. The original...
asked 2 hours ago -
a runner jogs 3.4 miles every morning. how many kilometers does
this represent
asked 2 hours ago -
A 60.80 gram sample of iron (with a heat capacity of 0.450
J/g◦C) is heated to...
asked 2 hours ago -
Question 1 2 pts
The preprocessor executes after the compiler.
False
True
Question 2 2 pts...
asked 3 hours ago -
Explain how a spinal cord injury above C3 could result in a
respiratory arrest
asked 4 hours ago -
You are a statistician and wish to estimate, with 90%
confidence, the proportion of adults who...
asked 6 hours ago -
A man is standing 3.40 m in front of a convex spherical mirror
of radius of...
asked 6 hours ago -
Match the annual percentage rate to each of these trade credit
terms:
__ 1/5, NET 60...
asked 6 hours ago -
ORGANIC CHEMISTRY QUESTION 5
PART A--------
Describe a chemical test for the identification of a double...
asked 10 hours ago -
Both Terence and Tong work at a local actuarial consulting firm
in Des Moines.
Terence arrives...
asked 10 hours ago