Find the magnitude of the thrust needed to reduce velocity

Assignment Help Physics
Reference no: EM13709151

Problem: A 4.93 × 105-kg lunar landing craft is about to touch down on the surface of the moon, where the acceleration due to gravity is 1.60 m/s2. At an altitude of 284 m the craft's downward velocity is 15.7 m/s. To slow down the craft, a retrorocket is firing to provide an upward thrust.

Part A: Assuming the descent is vertical, find the magnitude of the thrust needed to reduce the velocity to zero at the instant when the craft touches the lunar surface.

I need help to find the magnitude of the thrust needed to reduce the velocity to zero.

Reference no: EM13709151

Questions Cloud

Determine the largest angle that the crutch can have : The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, as the force vectors in the drawing indicate. Determine the largest angle that the crutch can have
Fast forward to current day and give : Based on the video, fast forward to current day and give your opinion on whether or not Apple's product strategy should change given its current rate of success and potential competing companies (i.e. Samsung, etc.) operating within their marke..
How much time is required for the penguin : A penguin slides at a constant velocity of 1.55 m/s down an icy incline. The incline slopes above the horizontal at an angle of 7.08°. How much time is required for the penguin to slide to a halt after entering the horizontal patch of ice
Measured with a digital data acquisition system : A voltage signal is produced by a transducer.  The signal contains its strongest frequency component at 50 Hz (amplitude = 5.0 V), plus a weaker component at the second harmonic (100 Hz) with amplitude 2.0 V. In addition, there is noise at 60 Hz with..
Find the magnitude of the thrust needed to reduce velocity : Assuming the descent is vertical, find the magnitude of the thrust needed to reduce the velocity to zero at the instant when the craft touches the lunar surface
Exit to the mixing chamber water is saturated water vapor : Superheated steam at 400°C and saturated water with a quality of 40% enter a mixing chamber at a pressure of 100 kPa. What is the required ratio of mass flow rate of superheated steam to mass flow rater of saturated water if at the exit to the mixing..
What is the magnitude of the horizontal net force : A 1980-kg car is traveling with a speed of 18.5 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 43.8 m
Regenerative rankine cycle with one closed feedwater heater : Water is the working fluid in an ideal regenerative Rankine cycle with one closed feedwater heater. Superheated vapor enters the turbine at 10 MPa, 480 C and the condenser pressure is 6 kPa. Steam expands through the first stage turbine where some is..
Find how long will it take the tanker starting from rest : The motion of a very massive object can be minimally affected by what would seem to be a substantial force. how long will it take the tanker, starting from rest, to reach a typical cruising speed of 6.0 m/s

Reviews

Write a Review

Physics Questions & Answers

  Calculate the associated electric field

In a certain region of space the electric potential from a given charge distribution can be represented by V= 3x2+2y+6 in units of volts. What is the associated electric field

  What is his final angular speed

The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. (See the figure below (Figure 1) .) When the skater's hands and arms are brought in and wrapped arou..

  What mass of uranium would be required for activity of curie

The common isotope of uranium, 238U , has a half life of 4.50 x 109 years, decaying by alpha emission. a) What is the decay constant? b) What mass of uranium would be required for an activity of one Curie? c) How many alpha-particles are emitted p..

  Find the pressure exerted on the floor

Three equal point charges, each with charge 1.35 mu C, are located at the vertices of an equilateral triangle whose sides are of length 0.60m. What is an electric potential energy U of the system? (Take as zero the potential energy of the three ch..

  Compute at what angle will next pair of bright spots occur

A laser beam of unknown wavelength passes through a diffraction grating having 5530 after striking it perpendicularly. At what angle will the next pair of bright spots occur

  Determine the magnitude of the normal force by the incline

A fan cart with a mass of 400g is placed on an inclined track. Thefan produces a force on the cart of 1.5N directed down the incline. Determine the magnitude of the normalforce by the incline on the cart

  Determine the speed of the arrow

An 93-g arrow is fired from a bow whose string exerts an average force of 120N on the arrow over a distance of 77cm, What is the speed of the arrow as it leaves the bow

  How many miles away was the lighting strike

Sound travels at a speed of about 344 m/s in air. You see a distant flash of lighting and hear the thunder arrive 7.6 seconds later. How many miles away was the lighting strike

  Calculate what the image position

A 1.0-cm-tall object is 60 cm in front of a diverging lens that has a -30 cm focal length, Calculate the image position

  Determine the acceleration of the trash can as it moves

A trash can with a mass of 15 kg has a coefficient of static friction of μs = 0.80 and a coefficient of kinetic friction of μk = 0.22. Determine the acceleration of the trash can as it moves

  What is the magnitude of force propelling bobsled forward

The speed of a bobsled is increasing because it has an accelerationof 2.4 m/s2. At a given instant in time, the forcesresisting the motion, including kinetic friction and airresistance, total 450N. The combined mass of the the ridersis 270kg

  What minimum-wavelength light can such an electron emit

An electron is accelerated through a potential difference of 3.00 V before colliding with a metal target. What minimum-wavelength light can such an electron emit

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