Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Whenever jumping straight down, you can be fatally injured if you land stiff-legged. One way to avoid the injury is to bend your knees on landing to decrease the force of the impact. A 75 kg man just before contact with the ground has a speed of 6.4 m/s.

Q1. In a stiff-legged landing he comes to halt in 2.0 ms. Find out the average net force which acts on him throughout this time.

Q2. Whenever he bends his knees, he comes to a halt in 0.10s. Find out the average net force now.

Q3. Throughout the landing, the force of the ground on the man points upward, whereas the force due to gravity points downward. The average net force acting on the man comprises both of such forces. Taking into account the directions of the forces, determine the force of the ground on the man in parts (1) and  (2).

Physics, Academics

  • Category:- Physics
  • Reference No.:- M99835

Have any Question? 


Related Questions in Physics

Investing 1000 at an annual interest rate of r compounded

Investing $1000 at an annual interest rate of r%, compounded continuously, for 10 years gives you a balance of $B, where B = g(r). Give a financial interpretation of the statements: (a) g(5) ≈ 1649. (b) g (5) ≈ 165. What ...

Model the tungsten filament of a lightbulb as a black body

Model the tungsten filament of a lightbulb as a black body at temperature 2 900 K. (a) Determine the wavelength of light it emits most strongly. (b) Explain why the answer to part (a) suggests that more energy from the l ...

Many texts draw figure 81 in the form of a venn diagram

Many texts draw figure 8.1 in the form of a Venn diagram (figure 8.2). Discuss why this diagram is a misleading representation of entropies. Hint: consider the three-variable ensemble XY Z in which x ∈ {0, 1} and y ∈ {0, ...

If the fluid of density r in problem obeys the perfect gas

If the fluid of density r in Problem obeys the perfect gas law, obtain the equation of state of the mixture, that is, Will this result be valid if a liquid is present instead of a solid? Problem:- For a fluid of density ...

Afind the best linear approximation lx to fx ex near x

(a) Find the best linear approximation, L(x), to f(x) = ex near x = 0. (b) What is the sign of the error, E(x) = f(x) - L(x) for x near 0? (c) Find the true value of the function at x = 1. What is the error? (Give decima ...

A transatlantic cable contains n 20 indistinguishable

A transatlantic cable contains N = 20 indistinguishable electrical wires. You have the job of figuring out which wire is which, that is, to create a consistent labelling of the wires at each end. Your only tools are the ...

A joint ensemble xy has the following joint

A joint ensemble XY has the following joint distribution. What is the joint entropy H(X, Y )? What are the marginal entropies H(X) and H(Y )? For each value of y, what is the conditional entropy H(X | y)? What is the con ...

A driver in a car originally moving at 129 ms applies the

A driver in a car, originally moving at 12.9 m/s, applies the brakes until the car comes to a stop. The car moves a distance of 34.8 m while braking. How much time did it take for the car to stop? Assume constant acceler ...

Calculate the pressure of the blood in the brain and in the

Calculate the pressure of the blood in the brain and in the feet of a pearson when standing. The average pressure of the blood in the heart is 1.3×104N/m2 above atmospheric pressure. The brain is located 0.50 mabove the ...

A race car moves 85 kmh at 55 degrees north of e what are

A race car moves 85 km/h at 55 degrees North of E. What are the E-W and N-S components of its velocity?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro