Find the speed with which she lands

Assignment Help Physics
Reference no: EM13537131

a. A pole-vaulter of mass 65.4 kg vaults to a height of 5.77 m before dropping to thick padding placed below to cushion her fall. Find the speed with which she lands?

b. If the padding brings her to a stop in a time of 0.485 s, what is the average force on her body due to the padding during that time interval?

Reference no: EM13537131

Questions Cloud

An electromagnetic wave is propagating towards the west : An electromagnetic wave is propagating towards the west. At a certain moment the direction of the magnetic field vector associated with this wave points vertically up. The direction of the electric field vector of this wave options:
Explain the lewis structure for the polyatomic oxyanion : Consider the Lewis structure for the polyatomic oxyanion shown below, where X is an element from the 3rd period (Na- Ar). By changing the overall charge, n, from 1-to 2 -to 3 - we get three different polyatomic ions.
Near the earth the intensity of radiation from the sun : Near the earth the intensity of radiation from the sun is 1.35 kW/m2. What volume of space in this region contains 1.0 J of electromagnetic energy? (c = 3.0 x 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2) options:
What is the recoil speed of the thorium nucleus : A uranium nucleus (mass 238 u), initially at rest, undergoes radioactive decay. what is the recoil speed of the thorium nucleus
Find the speed with which she lands : A pole-vaulter of mass 65.4 kg vaults to a height of 5.77 m before dropping to thick padding placed below to cushion her fall. Find the speed with which she lands
Evaluate the partial pressure of he and ne : A mixture containing 0.480 mol He(g), 0.300 mol Ne(g), and 0.118 mol Ar(g) is confined in a 7.00-L vessel at 25C. Calculate the partial pressure of He, Ne, and Ar in the mixture.
What are they at the bottom of the incline : The incline has height of 2.1 m and is at an angle of 19 degrees above the horizontal. It is allowed to slide down the incline. What are they at the bottom of the incline
If the wet bulb temperature of a parcel : If the wet bulb temperature of a parcel at 1000mb is 60F and its mixing ratio is 6 g/kg, find the relative humidity of the parcel after it is lifted dry adiabatically to 900mb. Assume a constant latent heat of vaporization of 2.47 x 10^6 J/kg.
A comparison of expected cash flows for the trucks : A comparison of expected cash flows for the trucks indicates the exchange lacks commercial substance. What is the entry to record the trade-in?

Reviews

Write a Review

Physics Questions & Answers

  Find the horizontal acceleration of the block

Two forces, and , act on the 7.00-kg block shown in the drawing. The magnitudes of the forces are F1=55.5 N and F2=33.5 N. Find the horizontal acceleration of the block

  Determine the radius of curvature of the cornea

To fit a contact lens to a patient's eye, a keratometer can be usedto measure the curvature of the cornea-the front surface of theeye. Determine the radius of curvature of the cornea

  What is the direction of the electric field

Three charged particles are arranged on corners of a square as shown in the figure below, with charge, What is the direction of the electric field at the upper right corner, which is a point in empty space

  How much work is required to eject a positive sodium ion

A 320 kg rocket sled can be accelerated at a constant rate from rest to 1400 km/h in 2.0 s. What is the magnitude of the necessary net force.

  What sound intensity does he measure for the two talkers

Two of Angie's friends are talking to each other at a distance of 3.0 m from where Angie stands. What sound intensity does he measure for the two talkers

  What is the current in each bulb

A battery with an emf of 12.0 V shows a terminal voltage of 11.8 V when operating a circuit with four light bulbs each rated at 4 W (at 12.0 V) which are connected in parallel. What is the current in each bulb

  Determine how much does the cable stretch

A 1.25-m-diameter wrecking ball hangs motionless from a 1.75-cm-diameter cable. how much does the cable stretch

  Find the change in the length of the beam due to cooling

A beam used in construction is made of steel, which has a coefficient of linear expansion of 1.3 × 10-5 K-1. find the change in the length of the beam due to cooling

  What fraction of its original ke

A runner of mass m = 39kg and running at 3.1m/s runs as shown and jumps on the rim of a playground merry-go-round which has a moment of inertia of 372 kg•m2 and the radius of 2 meters. Assume the merry-go-round is initially at rest, what is its final..

  Make use of the work-energy theorem

A major-league catcher gloves a 92 {rm mi}/{rm h} pitch and brings it to rest in 0.15 {rm m}.If the force exerted by the catcher is 803 {rm N}, what is the mass of ball.

  How much stored energy is there between the spheres

a spherical conductor of radius 7.00mm carries a surface charge density of 9.00 microC/mm2. How much stored energy is there between the spheres

  Estimate the amplitude of the subsequent oscillations

A 0.800 kg block is attached to a spring with spring constant 14 N/m. While the block is sitting at rest, What is the amplitude of the subsequent oscillations

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd