Saturday

April 19, 2014

April 19, 2014

Number of results: 60,647

**physics**

Let a force of 1500 Newtons act through a distance of 200 meters on a 1500 kg car which starts from rest. a. What is the work done? b. What is the final velocity? c. What is the car's momentum? d. What is the car's change in momentum? e. What is the car's Kinetic Energy? f. ...
*Monday, November 14, 2011 at 8:46pm by Ryan*

**Physics**

A 1500 kg car is turning around an arc of radius 20 m at a constant speed of 30 mph without slipping. What is the friction force the ground exerts on the car?
*Monday, March 21, 2011 at 5:49pm by James*

**physics : different question **

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest. 2000 kg car going 5m/s 500 kg car going 20 m/s 1000 kg car going20m/s 500 kg car going10m/s 1000 kg car going10/s 4000 kg car going 5m/s
*Tuesday, March 8, 2011 at 6:33pm by Diana*

**physics**

Rank these automobiles based on the magnitude of the impulse needed to stop them, from largest to smallest. 2000 kg car going 5m/s 500 kg car going 20 m/s 1000 kg car going20m/s 500 kg car going10m/s 1000 kg car going10/s 4000 kg car going 5m/s
*Tuesday, March 8, 2011 at 6:32pm by Diana*

**Physical Science**

A 1500 kg car moving at 20.0 m/s is brought to a stop by the brakes. How many kilocalories of heat are generated in this process?
*Friday, October 26, 2007 at 3:05pm by Anonymous*

**Physics**

A race car driver drives her 1500 kg car around a circular turn, which is banked at an angle of 20 degrees to the horizontal. If the car is traveling around the frictionless curve of radius 100m, a) What is providing the center-seeking force on the car? (ie. centripetal force...
*Tuesday, December 1, 2009 at 8:47pm by Anonymous*

**Physics**

What is the momentum of a two-particle sys- tem composed of a 1300 kg car moving east at 60 m/s and a second 1500 kg car moving west at 95 m/s? Let east be the positive direction. Answer in units of kg · m/s.
*Thursday, December 9, 2010 at 6:49pm by Ashley*

**PHYSICS**

A 1500- KG CAR IS MOVING WITH A VELOCITY OF 20m/s on a straight road when the brakes are applied uniformly. The car stops after traveling a distance of 200m.what is the braking force on the car?
*Wednesday, February 29, 2012 at 4:44pm by ALHARRADH*

**Physics**

On vacation, your 1500 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.60 m/s2. (a) What is the net force exerted by the car on the trailer? please show work
*Tuesday, September 15, 2009 at 8:15pm by jawn*

**physics**

A car of mass 1500 kg traveling at 15.6 m/s loses its brakes and collides with the rear end of the car in front of it, which has a mass of 1020 kg and is traveling in the same direction at 12.5 m/s. If the smaller car is given a speed of 15.3 m/s by the collision, what is the...
*Thursday, April 18, 2013 at 10:00pm by YOLO*

**physics**

a stationary car with a mass of 1500 kg reaches a velocity of 15 m/s 5 seconds after starting, what is the car's acceleration
*Monday, October 18, 2010 at 8:54pm by Joe Darp*

**physics**

An original stationary car with a mass of 1500 kg reaches a velocity of 15 m/s/s after starting. what is the car's acceleration?
*Sunday, December 5, 2010 at 1:19pm by Anonymous*

**Physics**

A car with a mass of 1500 kg moves at 26 m/s. What braking force is needed to bring the car to a halt in 10 s?
*Wednesday, July 25, 2012 at 1:13pm by DENNIS*

**physics**

A 1500.0 kg car accelerates uniformly to double its speed from 35.9 km/h in 4.74 s. What net force acted on this car?
*Tuesday, February 5, 2013 at 3:03pm by Emily*

**Physics**

A force of -9200 N is used to stop 1500 kg car traveling at 23 m/s. What braking distance is need to bring the car to a halt?
*Wednesday, September 19, 2007 at 5:40pm by Anonymous*

**physics**

A car has a mass of 1500 kg. What is the direction and magnitude of the force that is required to accelerate the car at 4.5 meters per second squared to the east?
*Wednesday, November 4, 2009 at 11:30am by Anonymous*

**Physical Science**

If a 1500 kg car is moving 20.0 m/s is brought to a stop by brakes. How many kilocalories of heat are generated in the process? Please include the formula that I should use to find the answer. -Thanks
*Friday, October 26, 2007 at 3:05pm by Sarah*

**physics**

A car of 1500 kg mass moving with constant speed 10m/s for 10s . Calculate the average force acting on the car during this time
*Monday, April 29, 2013 at 8:30pm by saber*

**Physical Science**

A 1000-kg car is moving east at 80 km/h collides head on with a 1500-kg car moving west at 40 km/h, and the two cars stick together. Which way does the wreckage move and with what initial speed?
*Sunday, September 11, 2011 at 4:32pm by Help*

**Physics**

A 1000-kg car moving east at 80 km/h collides head-on with a 1500-kg car moving west at km/h, and the two cars stick together. (a) Which way does the wreckage move and with what initial speed? (b) How much KE is lost in the collision?
*Monday, January 28, 2013 at 3:58pm by Jan*

**science**

a car with a mass of 2000 kg moves along the ice with a constant velocity of 10.0 m/s. What is the car's momentum? a. 200.0 N b. 20.000 N c. 200.0 kg x m/s d. 20,000 kg x m/s I know it is twenty thousand, I'm unsure of the measurements or units. Please explain.
*Wednesday, September 21, 2011 at 6:42pm by kenny*

**physics**

a 1500 kg car moving at 20 m/s strikes a truck waiting at a traffic light, hooking the bumpers. The two continue to move together at 10 m/s. What was the mass of the truck?
*Sunday, March 30, 2014 at 11:11pm by garrett*

**dynamics**

A 1500 kg automobile is treveling upto 20 degree incline at a speed of 6 m/s. if the driver wishes to stop his car in a distance of 5 m, determine the frictional force at pavement which must be supplied by rear wheels.
*Monday, July 22, 2013 at 11:20am by neeraj sharma*

**physics**

A 1500-kg car is making a turn with a 100.0-m radius on a road where the coefficient of static friction is 0.70. What is the maximum speed the car can go without skidding?
*Sunday, November 7, 2010 at 9:45pm by jane*

**physics**

a 1500 kg car moving with a speed of 15 m/s collides with a utility pole and is brought to rest in 0.3 s. Find the average force exerted on the car during the collision.
*Monday, February 7, 2011 at 8:53pm by Kriti*

**Physics**

A 1500 kg car traveling at 17.6 m/s to the south collides with a 5000 kg truck that is initially at rest at a stoplight. The car and truck stick together and move together after the collision. What is the ﬁnal velocity of the two-vehicle mass? Answer in units of m/s
*Sunday, January 22, 2012 at 5:16pm by Angel*

**Physics**

A 1500-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 13.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision? 1. Degree north of east? 2. M/S?
*Monday, February 3, 2014 at 4:06pm by Sean*

**Dynamics**

a 1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s. if the driver wishes to stop his car in a distance of 5m, determine the frictional force at pavement which must be supplied by rear wheels
*Monday, July 30, 2012 at 7:03am by DHilsath*

**Dynamics**

1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s. if the driver wishes to stop his car in a distance of 5m, determine the frictional force at pavement which must be supplied by rear wheels
*Monday, July 30, 2012 at 7:03am by basha*

**Dynamics**

1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s. if the driver wishes to stop his car in a distance of 5m, determine the frictional force at pavement which must be supplied by rear wheels
*Saturday, August 4, 2012 at 11:00pm by basha*

**dynamics**

the 1500 kg automobile is travelling up the 20 degree inclined at a speed of 6 m/s , if the driver wishes to stop his car in a distance of 5m , determine the frictional force at the pavement which must be supplied by the rear wheels.
*Sunday, December 30, 2012 at 7:58am by umesh*

**dynamics**

a 1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s if the driver wishes to stop his car in a distance of a 5m, determine the frictional force at pavement which must be supplied by rear wheels.
*Monday, July 22, 2013 at 9:36am by Anonymous*

**dynamics**

a 1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s if the driver wishes to stop his car in a distance of a 5m, determine the frictional force at pavement which must be supplied by rear wheels.
*Monday, July 22, 2013 at 9:56am by Anonymous*

**Dynamics**

A 1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s. If the driver wishes to stop his car in a distance of 5m,determine the frictional force at pavement which must be supplied by rear wheels.
*Monday, July 22, 2013 at 10:35am by Anonymous*

**Dynamics**

A 1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s. If the driver wishes to stop his car in a distance of 5m,determine the frictional force at pavement which must be supplied by rear wheels.
*Monday, July 22, 2013 at 12:09pm by Anonymous*

**Physics**

A hydraulic lift has two connected pistons with cross-sectional areas 25 cm2 and 390 cm2. It is filled with oil of density 530 kg/m3. a) What mass must be placed on the small piston to support a car of mass 1500 kg at equal fluid levels? kg HELP: The pressure is constant at ...
*Saturday, November 6, 2010 at 3:48pm by Kimbo*

**Don't get scared when you hear the word Physics!**

A 1500 kg car traveling at 16.0 m/s to the south collides with a 5100 kg truck that is initially at rest at a stoplight. The car and truck stick together and move together after the collision. What is the final velocity of the two-vehicle mass? Answer in units of m/s
*Thursday, January 17, 2013 at 8:29pm by Just help please. Homework due in 4 hours *

**physics**

A 1500 kg car moving at 10 m/s is stopped by the action of its brakes. The work done by the car's brakes is ____ Joules.
*Monday, March 28, 2011 at 1:12am by bode*

**physics**

A 1500 kg car moving at 10 m/s is stopped by the action of its brakes. The work done by the car's brakes is ____ Joules.
*Monday, March 28, 2011 at 12:02pm by aaron*

**physic**

A 1500 kg car moving at 10 m/s is stopped by the action of its brakes. The work done by the car's brakes is ____ Joules.
*Tuesday, July 17, 2012 at 11:47am by Anonymous*

**Dynamics**

A 1500 kg automobile is traveling upto 20 deg inclined at a speed of 6 m/sec. If the driver wishes to stop his car in a distance of 5m,determine the frictional force at pavement which must be supplied by rear wheels.
*Monday, July 30, 2012 at 9:57pm by benny*

**Dynamics**

a 1500 kg automobile is travelling upto 20 degrees inclined at a speed of 6m/s. if the driver wishes to stop his car in a distance of 5m, determine the frictional force at pavement which must be supplied by rear wheels
*Tuesday, July 31, 2012 at 3:29am by vikrant*

**BTech, Mechanical**

A 1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s. If the driver wishes to stop his car in a distance of 5m, determine the frictional force at pavement which must be supplied by rear wheels.
*Monday, July 22, 2013 at 11:54am by Seetharaman*

**Physics**

A 750 kg car traveling 22.0 m/s due north crashes into a 1500 kg truck traveling 20 m/s due west. The two vehicles become locked together and travel 19.0 m before stopping. Find the average frictional force (magnitude and direction) that brings the two to a stop.
*Friday, August 10, 2012 at 3:18pm by Chad*

**ap physics**

How fast would a 1200 kg car travel if it had the same linear momentum as a 1500 kg truck traveling at 90 km/h?
*Saturday, January 7, 2012 at 7:52pm by sergio*

**precalculus**

(a) 1500*2^(t/0.5) = 1500*2^(2t) (b) 1500*2^(2*20/60) = ? (c) 1500*2^(2*9) = ?
*Wednesday, March 2, 2011 at 1:18pm by agrin04*

**physics**

A 12100 kg railroad car travels alone on a level frictionless track with a constant speed of 20.5 m/s. A 5850 kg load, initially at rest, is dropped onto the car. What will be the car's new speed?
*Thursday, March 11, 2010 at 10:46am by Anonymous*

**college physics**

A 12100 kg railroad car travels alone on a level frictionless track with a constant speed of 20.5 m/s. A 5850 kg load, initially at rest, is dropped onto the car. What will be the car's new speed? Please help!
*Sunday, March 14, 2010 at 2:34pm by Anonymous*

**Physics**

A 1500 kg car moving east at 15 m/s collides with a 1730 kg car moving south at 15 m/s and the two cars stick together. What is the velocity of the cars right after the collision? How much kinetic energy was converted to another form during the collision?
*Thursday, October 25, 2007 at 5:50pm by Dante*

**physics**

a 1500 kg car travelling at 16.7 m/s to the south collides with a 6300 kg truck that is initially at rest at a stop light. the car and the truck sticks togetherand moves together after the collision. what is the final velocity of the two-vehicle mass? answer in units of m/s.. ...
*Monday, May 30, 2011 at 1:46pm by OMAR*

**Physics**

The front 1.20 m of a 1550 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. (a) If a car traveling 26.0 m/s stops uniformly in 1.20 m, how long does the collision last? cannot_evaluate s (b) What is the magnitude of the average force on...
*Thursday, December 9, 2010 at 5:10pm by Brittany*

**Physics**

A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)? (b) What will be the ...
*Tuesday, September 21, 2010 at 3:39am by Tom*

**math**

thank you. can you please check this for me: henri rici paid $5000 for a car. after one year, its value had decreased by $1500. by what percent had the car depreciated in value? is it 5000x=1500?
*Sunday, March 18, 2012 at 7:24pm by jocelyn*

**11th grade**

a 1000 kg car has a motor that exerts 1500 N of force to move it forward. a frictional force of 400 N opposes it's forward motion. calculate the acceleration of this car
*Wednesday, December 1, 2010 at 11:16pm by Anonymous*

**college--physics **

On vacation, your 1400 kg car pulls a 560 kg trailer away from a stoplight with an acceleration of 2.20. What is the net force exerted by the car on the trailer?What force does the trailer exert on the car? What is the net force acting on the car?
*Wednesday, September 23, 2009 at 3:18am by Mary*

**simple physics**

A 1500 kg car travels along the road at 25 m/s when the driver sees the light turn red and applies the brakes. What average force is needed to stop the car in a) 5 seconds and b) .2 seconds? What formula should be used?
*Sunday, December 4, 2011 at 8:22pm by JuJu*

**physics**

a 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered to the engine?
*Sunday, September 26, 2010 at 11:17am by shnook*

**physical science**

calculate the KE of a 1500 kg. car travelling at 60 km/h
*Wednesday, May 19, 2010 at 11:24am by joe*

**Physics**

3.A car with a mass of 1500 kg is parked on a hill with an incline of 20°. a.What is the weight of the car? b.What is the normal force the car experiences? (hint: balance the forces parallel and perpendicular to the hill using Newton’s second law) c.What is the magnitude of ...
*Monday, June 20, 2011 at 9:03pm by Hunter*

**Physics**

The front 1.20 m of a 1,350-kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. (a) If a car traveling 22.0 m/s stops uniformly in 1.20 m, how long does the collision last? s (b) What is the magnitude of the average force on the car? N (c...
*Tuesday, October 4, 2011 at 12:25pm by Allie*

**physics**

a 2250 kg car is traveling at 20 m/s to the west. the force required to stop the car at 7890 N to the east. How long will it take the car to stop? How far would the car move before stopping?
*Tuesday, February 25, 2014 at 9:28pm by Karen*

**physics**

calculate the impulse necessary to stop a 1500 kg car travelling at 90km/hour
*Monday, October 18, 2010 at 9:04am by Anonymous*

**physics**

A force of 3000 N is applied to a 1500-kg car at rest. (a) what is its acceleration? (b) what will its velocity be 5 s later?
*Thursday, November 11, 2010 at 11:41am by dominic echols*

**physics**

What is the work done by a car's braking system when it slows the 1500-kg car from an initial speed of 96 km/h down to 56 km/h in a distance of 55 m? I have tried to work this one and can't seem to get the answer.
*Sunday, February 13, 2011 at 5:33pm by merri*

**physics**

A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)? (b) What will be the ...
*Monday, September 20, 2010 at 2:11am by Tom*

**Physics D **

A 1500-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 13.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision? 1. what is the degree north of east? 2. how was do they move after the collision...
*Monday, February 3, 2014 at 7:33pm by Adam*

**physics**

m*g = 1500 N. m = 1500/g = 1500/9.8 = 153 kg = Mass of the rock. a = 0.8m/s^2. F = m*a = 153 * 0.8 = 122.4 N.
*Monday, October 22, 2012 at 4:42pm by Henry*

**physics**

m*g = 1500 N. m = 1500/g = 1500/9.8 = 153 kg = Mass of the rock. a = 0.8m/s^2. F = m*a = 153 * 0.8 = 122.4 N.
*Monday, October 22, 2012 at 4:42pm by Henry*

**physics**

a car pulling a 1500-kg trailer produces an acceleration of 0.50m/s^2. a)the frictional force in the wheels of the trailer is 125N. what force is the car exerting on the trailer? b) what force is the trailer exerting on the car?
*Tuesday, July 26, 2011 at 12:22am by belle*

**Engineering**

You are given a hydraulic jack which you'd like to keep in your car in case you have a flat. Your vehicle weighs 4500lbs, and you know the jack will have to lift 1500 lbs when you put it under the axle. The hand end cylinder of the jack is 1/2inch in diameter and the "work" ...
*Monday, September 25, 2006 at 2:15pm by Matt*

**Physics**

A car with bad shocks has a mass of 1500 kg. Before you go for a drive with three of your friends you notice that the car sinks a distance of 6.0 cm when all four of you get in the car. You estimate that the four of you together have a mass of 271 kg. As you are driving down ...
*Tuesday, January 3, 2012 at 11:13am by Sarah*

**Physics**

A car with bad shocks has a mass of 1500 kg. Before you go for a drive with three of your friends you notice that the car sinks a distance of 6.0 cm when all four of you get in the car. You estimate that the four of you together have a mass of 271 kg. As you are driving down ...
*Wednesday, January 4, 2012 at 7:56pm by Sarah*

**Physics**

A 100 kg car traveling at 40 m/s bounces off a stationary 300 kg car-recoiling at 20 m/s after the collision. What is the change in momentum during the collision (in kgm/s)?
*Wednesday, March 13, 2013 at 5:34pm by Taylor*

**physics**

The rope of a swing is 3.2 m long. Calculate the angle from the vertical at which a 95-kg man must begin to swing in order to have the same kinetic energy at the bottom as a 1500-kg car moving at 1.07 m/s (2.39 mi/hr).
*Sunday, March 11, 2012 at 8:35pm by Katie*

**physics**

1500 * 20 = (1500+m)10 m = 1500
*Sunday, March 30, 2014 at 11:11pm by Damon*

**Physics**

What is the magnitude of the average force required to stop an 1500 kg car in 8.0 s if the care is traveling at 95 km/h? Sum of F = ma?
*Wednesday, June 13, 2012 at 11:36am by Mike *

**Science**

A mechanic pushes a 2.20 103-kg car from rest to a speed of v, doing 4,550 J of work in the process. During this time, the car moves 24.0 m. Neglecting friction between car and road, find each of the following.
*Thursday, October 25, 2012 at 11:39pm by Mags*

**physics30sh**

a 1000 kg car engine exerts a force of 3000 N while the car accelerates from 20 m/s to 30 m/s is 5.0 seconds. How much force of resistance does the car experience?
*Friday, October 15, 2010 at 9:21pm by Michael*

**Physics**

Four people sit in a car. The masses of the people are 41 kg, 47 kg, 53 kg, and 55 kg. The car's mass is 1020 kg. When the car drives over a bump, its springs cause an oscillation with a frequency of 1.00 Hz. What would the frequency be if only the 41-kg person were present? ...
*Friday, March 30, 2012 at 11:54pm by Priyanka*

**physics**

A car with a mass of 980 kg is initially traveling east toward an intersection with a speed of vc = 18.9 m/s and a 1500 kg pickup is traveling north toward the same intersection. The car and truck collide at the intersection and stick together. After the collision, the ...
*Friday, November 30, 2012 at 2:59pm by Diane*

**physics**

What constant net force is required to bring a 1500 kg car to rest from a speed of 100 km/h within a distance of 55 m?
*Tuesday, July 22, 2008 at 6:13pm by Matt*

**Physics**

a liter of water is a kilogram 1500 t = Joules in if t is seconds 1500 t = specific heat water * 2 kg *(100-5)degrees K + heat of vaporization* 2 kg
*Monday, February 17, 2014 at 5:16pm by Damon*

**Physics**

The speed time graph shows the motion of a car over a period of 40 seconds. a. describe the motion of the car between: 1.) O and A - The car is traveling at constant speed from 0 to 20 m/s. 2.) A and B - The car is at rest for 20 seconds. 3.) B and C - The car is decelerating ...
*Tuesday, February 5, 2013 at 7:45am by RR*

**Physics**

The speed time graph shows the motion of a car over a period of 40 seconds. a. describe the motion of the car between: 1.) O and A - The car is traveling at constant speed from 0 to 20 m/s. 2.) A and B - The car is at rest for 20 seconds. 3.) B and C - The car is decelerating ...
*Tuesday, February 5, 2013 at 8:21am by RR*

**physics**

A 3 kg toy car with a speed of 10 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 2 m/s. If the cars are locked together after the collision with a speed of 5.20 m/s, how much kinetic energy is lost?
*Tuesday, September 18, 2012 at 10:12pm by mk*

**physics**

A 3 kg toy car with a speed of 10 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 2 m/s. If the cars are locked together after the collision with a speed of 5.20 m/s, how much kinetic energy is lost?
*Tuesday, September 18, 2012 at 10:17pm by mk*

**physics**

A 3 kg toy car with a speed of 10 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 2 m/s. If the cars are locked together after the collision with a speed of 5.20 m/s, how much kinetic energy is lost?
*Tuesday, September 18, 2012 at 10:30pm by mk*

**Pre-Calc**

L = 40 - 2x w = 20 -2x V = 1500 = L w x 1500= (40-2x)(20-2x)x = (800 -120 x + 4 x^2)x so 4x^3 - 120 x^2 + 800 x -1500 = 0 make a reasonable guess x = 5 for example then the box would be 30*10 * 5 = 1500 good, height of five is a solution so divide by (x-5) x^3 - 120 x^2 + 800 ...
*Tuesday, January 14, 2014 at 6:29pm by Damon*

**Physics**

A 2340 kg car traveling to the west at 20.7 m/s slows down uniformly under a force of 8340 N to the east. a) How much force would be required to cause the same acceleration on a car of mass 3180 kg? Answer in units of N. b) How far would the car move before stop- ping? Answer ...
*Monday, April 18, 2011 at 8:20pm by Anonymous*

**Physics**

A 40,000 kg railroad car initially traveling at 10 m/s collides in elastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
*Sunday, November 18, 2012 at 11:36am by Bryan*

**Physics**

A 40,000 kg railroad car initially traveling at 10 m/s collides in elastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
*Monday, November 19, 2012 at 5:22am by Anonymous*

**Physics**

A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
*Monday, November 19, 2012 at 2:27pm by Joshua*

**Physics**

A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
*Monday, November 19, 2012 at 2:27pm by Joshua*

**Physics**

A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
*Monday, November 19, 2012 at 2:28pm by Joshua*

**Physics**

A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
*Monday, November 19, 2012 at 4:07pm by Anonymous*

**Physics**

A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?
*Wednesday, November 21, 2012 at 8:23pm by Stan*

**Pre-Calc**

you must mean N = 20(5+3t)/(1+.04t) plug in t = 5 N = 20(5+15)/(1 + .04(5)) = 400/1.02 = 2000 Do the others likewise. as t ---> large n = (100 + 60(large))/(1 + .04 large) = appr 60large/.04large = appr 60/.04 ---> 1500 the limiting size = 1500 e.g. let t = 100,000 N = ...
*Wednesday, January 22, 2014 at 10:43pm by Reiny*

**Physical science**

How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?
*Sunday, March 10, 2013 at 9:50pm by Kizzy*

**Physical science**

How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?
*Sunday, March 10, 2013 at 9:53pm by Kizzy*

**PHYSICS**

[HELP WITH PART D PLEASE SCROLL DOWN] A 920 kg car is pulling a 300 kg trailer. Together, the car and trailer have an acceleration of 2.20 m/s2 in the forward direction. Neglecting frictional forces on the trailer, determine the following (including sign). the net force on the...
*Sunday, October 25, 2009 at 2:22pm by Ryan*

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