During take-off from earth, an astronaut of mass 76kg has an area of contact with his seat of 0.095m^2. Calculate the average pressure on the seat when the upward acceleration of the rocket is 47ms^-2

There are two parts to this question that we should consider seperately:
Firstly, we need to work out the total thrust force that is being applied through the seat onto the astronaut. Critically, this is the sum of both his weight and the force required to produce the resultant 47ms^-2 acceleration rather that just one of these.thrust = 76 x (47 + 9.81) = 4,318N
To determine the pressure, we can use the relevant equation: Pressure = Force / Area because we know both what the total force through the seat and the area of the seat are.Pressure = 4,318 / 0.095 = 45,400 Pa to 3 significant figures

Answered by Oliver N. Physics tutor

1722 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

An electron of mass 9.11x10^(-31) is fired from an electron gun at 7x10^6 m/s. What size object will the electron need to interact with in order to diffract?


How do I approach this question? Our teacher never explained it in class!


Newton's Law of Gravitation states: F=GMm/r^2, where G is the gravitational constant (6.67×10−11m^3kg^−1s^−2). Kepler's Third Law, states t^2=kR^3. The mass of the sun is 1.99x10^30kg. Find the value of k and its units


Explain Rutherford's alpha particle scattering experiment and what it provided evidence for


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences