Search: A small 5.50- rocket burns fuel that exerts a time-varying upward force on the rocket. This force obeys the equation . Measurements show that at , the force is 105.0 , and at the end of the first 2.40 , it is 177.0

Number of results: 28,151

Science
In a rocket, fuel burns at the rate of 1kg/s. This fuel is Ejected from the rocket with a velocity of 60km/s. What force will be exerted on the rocket?
Friday, February 10, 2012 at 12:49pm by Kushagra

Physics
I dont think it can be worked, without knowing how long the engine burns. The rocket is not a projectile until the fuel burns out. The launch speed is easy, it starts at zero veloicty, the rocket burns and it is accelerated upward.
Wednesday, September 10, 2008 at 2:59pm by bobpursley

physics
A 15.0-kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 1961 J by the time the rocket motor burns all the fuel. What additional height will the rocket rise? m - how do you organize this? how do the J's fit in?
Thursday, May 10, 2012 at 8:43pm by Haley

Physics
A small 7.10kg rocket burns fuel that exerts a time-varying upward force on the rocket. This force obeys the equation F = A + Bt^2. Measurements show that at t = 0, the force is 121.0N, and at the end of the first 2.10s , it is 176.0N. Part A Find the net force on this rocket ...
Sunday, September 20, 2009 at 3:59pm by Dreskillz89

physics
(ignore the other question i posted this is the right one) A rocket has a pre-ignition mass of 1100kg. On ignition it burns fuel at rate of 20kg s-1 producing a thrust of 10000N. How long after ignition of the fuel, will the rocket lift off? also explain how is it possible for...
Wednesday, February 15, 2012 at 5:04pm by beavis

physics
i need help figuring out what formaula to use for finding the final velocity of a rocket. Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12...
Tuesday, October 7, 2008 at 10:40pm by sonia

physics
Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12.7 g, and an initial mass of 25.5 g. The duration of its burn is 1.90 s. (a) What is the ...
Tuesday, October 7, 2008 at 10:08pm by tom

Physics
The solid fuel of a 300.kg rocket travelling at 1.64x104 km/h is ignited to correct the rocket trajectory in mid-flight to Mars. 10.00 kg of fuel is burnt in 15.00 s. If the exhaust velocity of the fuel, relative to the rocket, is 2.90x103 km/h, what is the acceleration of the...
Friday, October 26, 2012 at 3:29pm by Jeff

Physics
A model rocket is launched vertically upward from the ground. After 4.3s, its fuel is completely burned. Assume uniform acceleration of 3.0 m/s2 while the fuel is burning. What is the velocity of the rocket at the instant that the fuel is completely burned? What's the ...
Wednesday, January 4, 2012 at 5:24pm by Leasha

physics
a 4 kg model rocket is launched, shooting 50 kg of burned fuel from its exhaust at an average velocity of 625 m/s. What is the velocity of the rocket after the fuel has burned.? Ignore effects of gravity and air resistance.
Monday, January 31, 2011 at 3:13pm by collin

Physics
The mass of a rocket car plus fuel is 2,000kg. The rocket car starts from rest. The engine expels fuel(in the form of exhaust) over a period of 8 seconds. The exhaust has a velocity of 1,000m/s due west, and the velocity of the rocket car after 8 seconds is 90m/s due east. How...
Monday, April 30, 2012 at 5:39pm by Sarah

physics
A model rocket is launched from rest with an upward acceleration of 5.50 m/s^2 and, due to a strong wind, a horizontal acceleration of 1.50m/s^2 . How far is the rocket from the launch pad 7.20 later when the rocket engine runs out of fuel?
Monday, September 24, 2012 at 5:48pm by katelin

physiccs
a rocket that has consumed all of its fuel continues to move upward slowed mostly by the force of gravity. If the rocket's mass is 75.0 g and it takes 1.2 sec for the rocket to stop, what is the change in the rocket's momentum? what is the rockets stopping distance?
Monday, November 2, 2009 at 7:01pm by arriell

Physics
A typical model rocket has a mass of 50 g. Similarly, a typical "class C" model rocket engine can produce a total impulse of 10 Newton-seconds. We usually launch model rockets vertically, but if I instead launched this rocket horizontally, how fast would it be going ...
Monday, May 6, 2013 at 4:54pm by KK

Physics
Sorry for posting so many, but I just need to make sure I'm on the right track. Just need someone to check my working and answers. A rocket has a mass 3000kg. The fuel used in the rocket has an additonal mass of 500kg. At the launch, the rocket accelerates at 4m/s/s. Using...
Thursday, November 6, 2008 at 6:26am by JC

chemistry
. of oxidizer rockets often carry liquid propellant. Either fuel or oxidizer or both can be liquid. A rocket needs both. A jet engine only has to carry fuel. In a solid fuel rocket, the fuel and oxizer are premixed. There ars such things as hybrid rockets, with both solid and ...
Wednesday, January 13, 2010 at 11:55am by drwls

physics
A small weather rocket weighs 14.7 N. The rocket is carried up by a balloon. The rocket is released from the balloon and fired, and its engine exerts an upward force of 10.2 N on the rocket. What is the acceleration of the rocket?
Wednesday, August 17, 2011 at 10:40pm by Anonymous

Physics
A 4.40-kg model rocket is launched, shooting 53.0 g of burned fuel from its exhaust at an average velocity of 650 m/s. What is the velocity of the rocket after the fuel has burned? (Ignore effects of gravity and air resistance.)
Thursday, November 10, 2011 at 4:24pm by Eddie

phyicis
Homer Hickham and his buddies launched model rockets in the late 1950's when the US was trying to get a rocket into space. If homer launches a rocket from rest and its engine delivers a constance acceleration of 8.2 m/s^2 for 5.0seconds after which the fuel is used up by ...
Monday, October 29, 2012 at 1:18pm by Matt

gr 11 physics
as a rocket carrying a space probe acceleraes away from earth the fuel is being used up and the rocket's mass becomes less when teh mass of a rocket(and its fuel) is M and the distance of teh rocket from eart's centre is 1.5rE, the force of gravitational attraction ...
Thursday, November 26, 2009 at 10:48pm by mat

physics
A rocket has a per-ignition mass of 1100kgs-1 producing a thrust of 10000N. How long after ignition of the fuel will the rocket lift off? also explain how is it possible for a rocket to accelerate in space. (i cant work it outt. i know it involves the rocket thrust equation ...
Wednesday, February 15, 2012 at 5:01pm by beavis

physics
A small weather rocket weighs 15.5 N. The rocket is carried up by the balloon. The rocket is released from the balloon and fired, but its engine exerts an upward force of 11.0 N. What is the acceleration of the rocket?
Sunday, October 3, 2010 at 5:16pm by devon

physics
A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 34.3 . The rocket accelerates for a period of 8.00 before exhausting its fuel. The rocket continues its ascent until its motion is halted by gravity. The rocket then enters ...
Monday, September 19, 2011 at 8:46pm by Karina

physics
A rocket is fired straight up and accelerates upward at 24 m/s2 for 12 seconds. The rocket then runs out of fuel and coasts. Ignore any air resistance effects and use -9.8 m/s2 for the local acceleration due to gravity. a) What is the rocket’s maximum altitude? b) How ...
Wednesday, September 28, 2011 at 3:18pm by help

physics
A rocket burns 5kg per ejecting it as a gas with a velocity of 1600m/s relative to the rocket. How much force is exerted on the rocket. Also find the velocity exerted when its mass reduces to 1/200 of its initial mass.
Wednesday, September 5, 2012 at 12:29pm by Rano

Physics
A rocket whish is in deep space and initially at rest relative to an inertial reference frame, has a mass of 2.55 X 10^5 kg of which 1.81 X10^5 kg is fuel. The rocket engine is then fired for 250 s during which feul is consumed at the rate of 480 kg/s. The speed of the exhaust...
Friday, February 2, 2007 at 4:08pm by Tammy

physics
The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off. What is the impulse exerted on the rocket? What is the velocity of the rocket at the end of the 1.50 minute period?
Thursday, February 3, 2011 at 7:51pm by help

science
The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off. What is the impulse exerted on the rocket? What is the velocity of the rocket at the end of the 1.50 minute period?
Thursday, February 3, 2011 at 5:24pm by Maria

physics
A 1000m3 rocket weighing 2.0x10^3 kg is going to be launched into space. On ignition, gas is expelled from the bottom of the rocket at a speed of 2.4x10^3 m/s relative to the rocket. The rate at which the fuel is consumed is 8.02kg/s. Is there a time delay between ignition and...
Wednesday, March 31, 2010 at 12:28pm by J

physics
A rocket burnt fuel av the rate of 20kgs^4 and eject it with a velocity of 5.0*10^3ms^-1. Calculate the thrust exerted by the gas on the rocket.
Wednesday, August 31, 2011 at 2:48am by john

physics
A rocket is launched straight up with a constant acceleration. Three seconds after lift off, a small part of the rocket falls off the side. The small part hits the ground 7 seconds later. Ignoring air resistance, what was the acceleration of the rocket?
Monday, October 3, 2011 at 12:26am by anonymous

physics
a rocket is fire vertically and ascends with constant vertical axceleration of 20 m/s^2 for 1min. its fuel is then all used and it continues to move as a free falling bodyn neglexting rhe variation of g altitude, compute a) the max altitude reached by the rocket and b) the ...
Sunday, April 28, 2013 at 10:40am by gladys

Physics
The Spent Rocket Parts: During launches, rockets often discard parts. A certain rocket starts from rest on the launch pad and accelerates upward at a steady 3.3 m/s2. When it is 235 m above the launch pad, the rocket discards a used fuel canister by simply disconnecting it. ...
Tuesday, November 20, 2012 at 10:40pm by Zalak

Intermediate Algebra
A model rocket is launched from a height of 50 feet. the formula: h=-16t^2+70t+50 describes the rocket's height,h,in feet t seconds after it was launched. how long will it take the rocket to reach the ground.
Monday, November 19, 2012 at 5:41pm by nicole

physics please help
A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 29.4 . The rocket accelerates for a period of 10.0 before exhausting its fuel. The rocket continues its ascent until its motion is halted by gravity. The rocket then enters ...
Saturday, August 21, 2010 at 12:52am by Anonymous

physics
A rocket if fired vertically up from ground with resultant vertical acceleration of 5m/s.The fuel is finished after 2 minutes and the rocket continues to for sometime.How long after fire the max height will be reached?
Sunday, September 18, 2011 at 12:47pm by Tumur

physics
When it is 152 m above the ground, a rocket traveling vertically upward at a constant 9.50 m/s relative to the ground launches a secondary rocket at a speed of 12.4 m/s at an angle of 50.0 degrees above the horizontal, both quantities being measured by an observer sitting in ...
Wednesday, November 17, 2010 at 8:38pm by alejandrob

Physics
Which requires more fuel- a rocket going from the earth to the moon or a rocket coming from the moon to earth? Please explain why. Thank you so much :)
Saturday, May 14, 2011 at 9:12am by Rebekkah

physics
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 6.00 until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height reached by the rocket. ...
Thursday, September 8, 2011 at 9:12pm by Anonymous

physics
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 29.4 . The acceleration period lasts for time 9.00 until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height reached by the rocket. ...
Wednesday, May 25, 2011 at 8:51pm by ahhhh!

Physics
A toy rocket is launched upwards from rest. The rocket engine will cause the rocket to accelerate at 25 m/s^2 for 3.0 seconds. a) How fast is the rocket moving aft the end of the 3 seconds? b) What is the maximum height reached by the rocket? c) What is the total time the ...
Thursday, October 7, 2010 at 10:04pm by Sam

physics
A rocket moves straight upward, starting from rest with an acceleration of +25.5 m/s2. It runs out of fuel at the end of 4.26 s and continues to coast upward, reaching a maximum height before falling back to Earth. (a) Find the rocket's velocity and position at the end of ...
Sunday, January 22, 2012 at 2:48pm by john

Chemistry
Gasohol is a fuel containing ethanol (C2H5OH) that burns in oxygen (O2) to give CO2 and water. How many moles of O2 are needed to completely react with 2.50 moles of ethanol?
Tuesday, October 25, 2011 at 11:59pm by Deborah

geometry
paul launches a rocket from a base standing 2 feet off the ground. the rocket has an initial velocity of 50 feet per second. how long will it take for the rocket to reach 100 ft. high?
Wednesday, May 30, 2012 at 12:30am by Anonymous

Science/Physics
An astronaut is about 20 m from her space station when the rocket thrusters run out of fuel. If she is carrying a few tools and can remove the rocket thruster, what should she do to get back to the space station? Explain reasoning.
Sunday, November 13, 2011 at 6:07pm by Ann

Calculus
The fuel efficiency, E, in litres per 100 km, for a car driven at speed v, in km/h is E(v)=1600v/(v^2+6400) a)If the speed limit is 50 km/h, determine the legal speed that will maximize the fuel efficiency. Could someone explain to me why the legal speed is 50 km/h to maximize...
Monday, March 5, 2012 at 2:36pm by Jessica

Physics
A model rocket is launched upward with an initial speed of 50 m/s. It accelerates with a net constant upward acceleration of 2.0 m/s^2 until its engines stop at an altitude of 150 m. (a) What is the maximum height reached by the rocket? (b) how long after the life-off does the...
Friday, September 24, 2010 at 4:51pm by Mark

computer science
I need help one how create a spreadsheet that will give an accurate launch profile for a vertical liftoff for the SpaceX Falcon 9 rocket. the information they give me is: •Start with a rocket with a mass, M1, moving with a speed, v1 •The rocket expels some small mass...
Saturday, April 13, 2013 at 6:37pm by Greg

Chem.
Oxygenated fuel is fuel that has an added material to increase the oxygen as the fuel (gasoline) burns. In the U. S., that was MTBE until it was outlawed and ethanol has taken the place of MTBE. So if you define oxygenated fuel as a hydrocarbon to which ethanol has been added...
Tuesday, November 3, 2009 at 3:27pm by DrBob222

physics
I am having so much trouble with this D: A rocket is traveling straight up from its launch pad. An observer 5.00 km from the launch pad notices that at one instant, she must tilt her telescope 45.0 degrees upward to see the rocket. 10.0 seconds later, she must tilt her rocket ...
Thursday, August 25, 2011 at 8:45pm by Jasmine

Physics
A model rocket is launched straight upward with an initial speed of 58.0 m/s. It accelerates with a constant upward acceleration of 1.50 m/s2 until its engines stop at an altitude of 120 m. (a) What can you say about the motion of the rocket after its engines stop? (b) What is...
Tuesday, February 7, 2012 at 6:56pm by Haroula

Physics
A model rocket is launched straight upward with an initial speed of 50 m/s. It accelerates with a constant upward acceleration of 2.00 m/s^2 until its engines stop at an altitude of 150 m. a) What is the max. height reached by the rocket? b) When does the rocket reach max. ...
Sunday, September 30, 2007 at 12:34pm by Lindsay

Physics
a 2000kg rocket has a rocket motor thast generates 3.0 x 10^5 N of thrust. What is the rockets initial upward acceleration ? ( I got 140ms^2)???? dont know if its right and then it says at an altitude of 5000m the rockets acceleration has increased to 6.0m/s^2. What is the ...
Friday, October 8, 2010 at 2:30am by Psuedia

physics
A model rocket is launched straight upward with an initial speed of 30.0 m/s. It accelerates with a constant upward acceleration of 2.50 m/s2 until its engines stop at an altitude of 170 m. (a) What is the maximum height reached by the rocket? m (b) How long after lift-off ...
Sunday, January 22, 2012 at 1:18am by desperate help

physics
A model rocket is launched straight upward with an initial speed of 30.0 m/s. It accelerates with a constant upward acceleration of 1.50 m/s2 until its engines stop at an altitude of 170 m. (a) What is the maximum height reached by the rocket? (b) How long after lift-off does ...
Thursday, September 15, 2011 at 10:43pm by ashley

physics
model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a constant upward acceleration of 1.00 m/s2 until its engines stop at an altitude of 130 m. (a) What is the maximum height reached by the rocket? m (b) How long after lift-off does...
Wednesday, September 8, 2010 at 11:55pm by harry

Physics
A rocket leaves a launch pad at liftoff with a great deal of upward momentum. What was initially given downward momentum? a. the launch pad b. the astronauts aboard the rocket c. the expelled fuel d. the entire Earth
Friday, December 9, 2011 at 8:04am by HELP

physics
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 91.9 m/s2 for 1.53 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude (above the ground) ...
Friday, March 15, 2013 at 6:20pm by Christina

Physics
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 76.0 m/s2 for 1.90 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude (above the ground) ...
Monday, September 10, 2012 at 2:20am by StressedStudent

science
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 86.9 m/s2 for 1.69 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude (above the ground) ...
Monday, October 17, 2011 at 12:25pm by Anonymous

physics
A rocket flies upward with a velocity of 1050 km/h and at an angle of 30 degrees to the vertical. If the rocket runs out of fuel determine: (i) The maximum additional altitude, h. (ii) The corresponding time. (iii) The horizontal distance at this time The gravitational ...
Saturday, July 9, 2011 at 1:58am by sand

Science
A model rocket is launched straight upward with an initial speed of 30.0 m/s. It accelerates with a constant upward acceleration of 2.50 m/s2 until its engines stop at an altitude of 160 m. A. what is the maximum height reached by the rocket? B. how long does the rocket stay ...
Saturday, September 4, 2010 at 11:18pm by Taylor

Physics
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8m/s^2 . The acceleration period lasts for time 8.00s until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height y_max reached by ...
Tuesday, June 1, 2010 at 7:56pm by johnny

Physics
A rocker acceleratess up ar 5m/s/s for 10s and at which point the fuel is exhusted, and then the rocket continues upwards in free fall. a)How high does teh rocket riseb)What total time does the rocket spend in the air? b) What total time does the rocket spend in the air? The ...
Tuesday, September 19, 2006 at 6:05pm by Billie

Physics
A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward). The rocket's acceleration has components a(t)_x=alpha*t^2 and a(t)_y=beta-gamma*t, where alpha = 2.50 , beta= 9.00 , and gamma= 1.40 . At the rocket is at the origin and has ...
Wednesday, April 13, 2011 at 11:45pm by Allison

physics
1. If our sun shrank in size to become a black hole, using the gravitational force equation, explain why the Earth's orbit would not be affected. 2. Strictly speaking, you weigh a tiny bit less when you are in the lobby of a massive skyscraper than you do at home. Why is ...
Tuesday, July 13, 2010 at 8:49am by confused

Physics
Can someone help me find Delta Time for the first 150 meters of this question. Everytime I try and get it by using the quadratic formula I get two negative numbers which I don't think is right. A model rocket is launched straight upward with an initial speed of 50.0m/s. It...
Friday, September 28, 2007 at 3:43pm by Dustin

Physics
The acceleration is a = F/m = 20 m/s^2 while the engine burns, if you assume the mass remains constant. The horizontal component of acceleration is ax = a cos 60 = 10 m/s^2 and the vertical component is a sin 60 = 17.32 m/s^2 While burning, the equations of motion are Y = (1/2...
Wednesday, October 31, 2007 at 10:30pm by drwls

physics
A rocket consists of a payload of 4280.0 kg and 1.626 105 · of fuel. Assume that the rocket starts from rest in outer space, accelerates to its final velocity, and then begins its trip. What is the speed at which the propellant must be expelled to make the trip from the...
Tuesday, October 11, 2011 at 9:44am by mymi

chemistry-URGENT
Hydrazine is used as a rocket fuel. When 1.50 g of hydrazine, N2H4, was burned in a bomb calorimeter, temperature increased from 23.57 °C to 28.84 °C. The heat capacity of the calorimeter was 5.510 kJ/°C. Determine the enthalpy of combustion of octane.
Sunday, April 10, 2011 at 7:59pm by Maria

science
a small weather rocket weighs 20.5 N. The rocket is carried up into the air by a balloon. The rocket is released from the balloon and fired. What is the acceleration of the rocket if an upward force of 25 N is applied? Net force = force up - force down. force down is its ...
Saturday, December 30, 2006 at 12:33pm by leafprincess

Physics
A rocket of mass 1.0x10^3kg is being fired to a height of 5.0 x 10^3 m. The rocket engine shuts off when the rocket reaches a height of 1.0x10^3m, and the rocket coasts up to 5.0 x 10^3 m. A) What velocity must the rocket have at the 1.0x10^3 m point to enable it to reach 5.0 ...
Sunday, October 28, 2012 at 8:57pm by Chris

Physics
A rocket is fired vertically with an upward acceleration of 30 m/s2. After 20 s, the engine shuts off and the rocket then continues rising (while in free-fall). The rocket eventually stops rising and then falls back to the ground. (a) What is the highest point the rocket ...
Monday, September 13, 2010 at 11:35pm by Jackie

Exploring Space
I dont agree with the premise. Hydrazine is a very nice rocket fuel, which does not use oxygen. It decomposes in a violent exothermic decomposition reaction when sprayed over a catalyst. Hydrazine can be combined with an oxidizer, often dinitrogen tetraoxide, which contains ...
Monday, March 15, 2010 at 7:56pm by bobpursley

Physics
A rocket was launched and it now has an acceleration of 3m pers second squared upwards.the mass of the rocket is 5000kg.calculate the net force acting on the rocket and the upthrust exerted by the exhaust gases on the rocket.
Monday, February 4, 2013 at 11:59am by Tshephiso

algebra
A launched rocket has an altitude, in meters,give n by the polynomial h+vt-4.9t^2, where h is the height, in meters, from which the rocket is airborne. If a rocket is launched from the top of the tower 90 meters high with an initial upward speed of 50 meters per second, what ...
Tuesday, May 15, 2012 at 9:59pm by rr

physics
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 10.0 until the fuel is exhausted. After that, the rocket is in free fall. What's the max height? Ignore air resistance ...
Wednesday, September 28, 2011 at 3:33pm by Uzz

math 9
in a park some people are launching model rockets to find the maximum height,x,the rocket reaches, a person stands 50.0m from the launch sight and measure the angle from the ground to the rocket at its maximum height. if the angle is 36 then the maximum height,x, of rocket is...
Thursday, June 17, 2010 at 4:02pm by steph

physics
the solid fuel rocket boosters used to launch the space shuttle are able to lift the shuttle 45 kilometers above earths surface. During the 2.00 min that the boosters operate, the shuttle accelerates from rest to a speed of nearly 7.50 x 10^2 m/s. What is the magnitude of the ...
Tuesday, September 15, 2009 at 9:51pm by NoNo100

Physics
You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10~m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
Tuesday, March 12, 2013 at 10:12pm by John

physics
You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
Tuesday, March 12, 2013 at 5:14pm by Jacobb

trig
A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket
Thursday, April 14, 2011 at 6:13pm by mikey

physics
1. Using the acceleration and time, calculate the velocity and height at fuel burnout. Then figure the height the rocket can go above this with that initial velocity. Add the heights to get the maximum altitude. Here is a second way. Energy put into rocket = change in PE Force...
Saturday, September 18, 2010 at 6:45pm by bobpursley

Physics
A model rocket has a mass of 3.00 kg. It is fired so that when it is 220 m above the ground it is travelling vertically upward at 165 m/s. At that point its fuel runs out so that the rest of its flight is without power. Assume that the effect of air friction is negligible and ...
Friday, March 8, 2013 at 1:57pm by Ravi

Physics newton
A rocket weighs 1 x10^7 N while on the surface of the earth. The ignition of its engines results in a lift off force of 1.5 X 10^7 N a) what is the mass of the rocket. b) what is its acceleration at lift -off c)How fast will it be moving if it acceleartion at this rates for 10...
Sunday, November 5, 2006 at 4:04pm by harry

Physics
A rocket with initial mass of 7.50×103 kg is fired in the vertical direction. Its exhaust gases are ejected at the rate of 4.50×101 kg/s with a relative velocity of 2.200×103 m/s. What is the initial acceleration of the rocket? What is the acceleration after ...
Wednesday, April 4, 2012 at 8:34pm by Helen

physics
You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
Sunday, March 10, 2013 at 8:45pm by Anonymous

physics
A rocket carrying a satellite is accelerating straight up from the earth's surface. At 1.20 after liftoff, the rocket clears the top of its launch platform, 68 above the ground. After an additional 4.85 , it is 1.50 above the ground.Calculate the magnitude of the average ...
Sunday, March 11, 2012 at 7:59am by Muhammad

Physics
An antitank weapon fires a 3.0 kg rocket which acquires a speed of 50. m/s after traveling 90. cm down a launching tube. Assuming the rocket was accelerated uniformly, what force acted on it?
Monday, November 26, 2012 at 9:04am by Hussen

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