Wednesday

August 20, 2014

August 20, 2014

Number of results: 27,682

**physical science**

A car travels at a constant speed of 60 km/h for 3.5 hours. What is the total distance that the car has traveled?
*September 13, 2011 by kannon*

**maths**

a car travels at a speed of 35mph how long would it take a car to travel 7miles
*October 3, 2011 by chloe*

**Physics **

a car traveling westward at 20 m/s turns around and travels eastward at 5 m/s. what is the change in velocity of the car?
*October 5, 2011 by Katie*

**physics**

The cheetah can reach a top speed of 114km/h (71mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50m in a straight line reaching a final speed of 91 km/h. a.) Determine the cheetah's average acceleration during the short sprint. b.) Find it'...
*February 3, 2013 by george*

**physics **

a car travels 50 meters in 1 second. what is the car's velocity?
*May 23, 2012 by ben*

**science**

a train stooping at two stations 4km apart takes 4 min on the journey from one of the station to the other.assuming that it first accelerates with a uniform acceleration x and then that of uniform retardation Y,prove that 1/X+1/Y=2
*June 27, 2012 by 8.*

**physics**

Please help!!! A car travels 90.0 minutes on the highway. For the first 36.6 minutes it travels 76.5 km/h. It maintains 95.1 km/h for the remainder of the trip. What was the average speed of the vehicle in km/h?
*October 4, 2012 by Victoria*

**physics**

A car with an initial speed of 21.9 km/h accelerates at a uniform rate of 0.89 m/s 2 for 3.7 s. Find the ﬁnal speed of the car. Find the displacement of the car after that time. Answer in units of km
*September 29, 2012 by Anonymous*

**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 and ...
*September 28, 2011 by Uzz*

**General Physics 1**

1) A car moving with an initial velocity of 29.6 m/s decreases to a velocity of 17.9 m/s over a time interval of 4.08 seconds. (a.) What is the average acceleration of the car during this time? (b.) Assuming the acceleration is constant, how far did the car travel during this ...
*June 16, 2014 by Kyle*

**physics **

1) A car, initially traveling with a uniform velocity, accelerates at a rate of 1.0 m/s2 for a period of 12.0 seconds. If the car traveled 190.0 m during this 12.0 second period, what was the velocity of the car when it started to accelerate?
*February 10, 2013 by sana*

**dynamics**

a motorcycle traffic police starts from rest at point A two seconds after a car speeding at the constant rate of 120 km/h passes point A (where speed limit is 100 km/h only) if the policeman accelerates at the rate of 6 m/s^2 until he reaches the speed of 150 km/h and ...
*April 1, 2013 by mahdi*

**physics**

A mosquito inside a car is not hit by the back wall when the car starts moving.Why?
*July 29, 2011 by ...........................*

**Physics**

Consider a simple frictionless roller-coaster. It begins at x = 0, at a height of y = H. Then it drops into a dip, reaching a minimum at x = 100, with zero height (y = 0). Finally, it goes back up at x = 200, but only reaches a height of y = H/2. Assume the roller-coaster car ...
*March 12, 2014 by Mikayla*

**physics**

A car traveling in a straight line has a velocity of +5.5 m/s. After an acceleration of 0.65 m/s^2 , the car’s velocity is +8.9 m/s. In what time interval did the acceleration occur? Answer in units of s
*November 1, 2012 by leo*

**world issues**

A woman goes out running. She first travels 5.2km north. She then turns and travels 3.6km west. Finally, she turns If a bird were to start out from the origin (where the woman starts) and fly directly (in a straight line) to her final location, what distance d would the bird ...
*March 2, 2014 by Anonymous*

**Word Problem, math.**

A police car traveling 100 ft/sec is chasing a car being driven erratically at 75 ft/sec. If the police car is 300 feet behind the other vehicle when the chase began, about how many seconds will it take to catch the erratic driver? I think I know how to solve this, but I want ...
*September 5, 2010 by Arie*

**Physics**

True or false Consider a simple frictionless roller-coaster. It begins at x = 0, at a height of y = H. Then it drops into a dip, reaching a minimum at x = 100, with zero height (y = 0). Finally, it goes back up at x = 200, but only reaches a height of y = H/2. Assume the ...
*March 12, 2014 by Monica*

**Maths / Physics**

A car is moving along a straight horizontal road at 82 km/h and rain is falling vertically downwards at 25 km/h. Find the velocity of the rain relative to the driver of the car.
*January 2, 2011 by Ian Hart*

**physic**

a car sits still at a red light. once the light turns green, the driver accelerates at a rate of 3.5 m/s^2. how far has the car moved after 6 seconds?
*January 14, 2012 by grissell*

**Physics**

A car of mass 1,700 kg is initially traveling at a speed of 25 m/s. The driver then accelerates to a speed of 35 m/s over a distance of 500 m. Calculate the change in the kinetic energy of the car.
*July 11, 2012 by Sierra*

**Physics**

A car of mass 1,700 kg is initially traveling at a speed of 25 m/s. The driver then accelerates to a speed of 35 m/s over a distance of 500 m. Calculate the change in the kinetic energy of the car.
*July 11, 2012 by Sierra*

**physics**

A car tavels a distance of 100 m with a constant acceleration and average velocity of 20 m per second .The final velocity acquire D by the car is 25m per second .find the initial velocity and acceleration of car
*July 2, 2013 by spoorthi.p*

**Physics**

An advertisment claims that a certain 1200 kg car can accelerate from rest to a speed of 25 m/s in 8.0 s. what average power must the motor supply in order to cause this acceleration?
*June 13, 2011 by unknown*

**Physics**

A car that was initially at rest reaches a final speed of +50.0 m/s over a displacement of +55.0 m. What is the magnitude of the acceleration? Find the time it took to travel the first 55 m.
*May 11, 2013 by Jenna*

**physics**

at time t=0 the driver starts to brae determine how long the bus takes to stop
*October 30, 2010 by amir*

**Physics**

On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.80 m/s2. What is the net force acting on the car? I have determined: 1) the force acting on the car by the trailer is 972 N. 2) The force acting on the trailer by the car is ...
*January 17, 2010 by Bobby C*

**Physics**

On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.80 m/s2. What is the net force acting on the car? I have determined: 1) the force acting on the car by the trailer is 972 N. 2) The force acting on the trailer by the car is ...
*January 18, 2010 by Robert C*

**phys**

At t= 0, a particle starts from rest at x= 0, y= 0, and moves in the xy plane with an acceleration ->a = (4.0ihat+ 3.0jhat)m/s^2. Assume t is in seconds. Determine the position of the particle as a function of time t. Express your answer in terms of the unit vectors ihat ...
*September 15, 2009 by physics*

**physics**

A 2.67 kg block starts from rest at the top of a 27.6 incline and accelerates uniformly down the incline, moving 2.89 m in 2.45 s. The acceleration of gravity is 9.81 m/s2 . a) What is the magnitude of the accelera- tion of the block? Answer in units of m/s2
*November 5, 2012 by scott*

**Physics**

A 2.86 kg block starts from rest at the top of a 27.5◦ incline and slides 1.94 m down the incline in 1.43 s. The acceleration of gravity is 9.8 m/s2. What is the speed of the block after it slid the1.94 m? Answer in units of m/s
*September 29, 2013 by Anthony*

**physics**

A car traveling in a straight line has a velocity of +4.9 m/s. After an acceleration of 0.50 m/s2, the car's velocity is +7.3 m/s. In what time interval did the acceleration occur?
*September 27, 2010 by Anonymous*

**physics**

A car traveling in a straight line has a velocity of +4.9 m/s. After an acceleration of 0.50 m/s2, the car's velocity is +7.3 m/s. In what time interval did the acceleration occur? 1 s
*September 27, 2010 by Anonymous*

**physics**

A car traveling in a straight line has a velocity of +3.3 m/s. After an acceleration of 0.71 m/s2, the car's velocity is +8.8 m/s. In what time interval did the acceleration occur?
*October 14, 2012 by logan*

**physics**

A car traveling in a straight line has a velocity of +5.6 m/s. After an acceleration of 0.65 m/s2, the car’s velocity is +9.6 m/s. In what time interval did the acceleration occur?
*November 3, 2013 by Jordan*

**physics**

Approaching a flashing pedestrian activated traffic light, a driver must slow down to a speed of 30km/h. If the cross walk is 150m away and the vehicle's initial speed us 59km/h, what must be the magnitude of the car's acceleration to reach the speed limit? Answer is 0.41m/s^2...
*July 3, 2013 by jason*

**Physics**

For a standard production car, the highest road-tested acceleration ever reported occurred in 1993, when a Ford RS200 Evolution went from zero to 26.8 m/s (60 mi/h) in 2.557 s. Find the magnitude of the car's acceleration. Number Units the tolerance is +/-4%
*August 31, 2013 by RW*

**physics**

Each of the four wheels of a car push on the road with a force of 4.0*10^3 N [down]. The driving force on the car is 8.0*10^3 N [W]. The fictional resistance on the car is 6.0*10^3 [E]. Calculate the following A) the mass of the car B) the net force on the car C) the cars ...
*March 29, 2012 by Maggie*

**scottsdale CC**

A car travels around a curve at a constant speed of 80.0 km/h. What is the car’s instantaneous velocity at an instant when it is headed west
*February 20, 2012 by juan *

**science**

A car travels 5km to east. Then it goes 3km to north and then 2km to west. What is the displacement the car has traveled?
*November 19, 2012 by Mouli*

**Science.**

A car travels 5km to east. Then it goes 3km to north and then 2km to west. What is the displacement the car has traveled?
*November 21, 2012 by Aj tuhin*

**physics**

A car starts from rest at a stop sign. It accelerates at 4.6 m/s^2 for 7.4 s, coasts for 1.8 s, and then slows down at a rate of 3.5 m/s^2 for the next stop sign.How far apart are the stop signs?
*February 1, 2012 by T.J*

**college physics**

A car starts has a position (in meters) given by x=kt^3 +2t where k is a constant ans t is in seconds. The velocity (in m/s) of the car at t=1 is:
*August 24, 2010 by Thomas*

**physics**

a comet experiences uniform acceleration from 60 m/s to 183 m/s in 10.0 s. what is its rate of acceleration ?
*January 11, 2012 by Anonymous*

**physics**

A comet experiences uniform acceleration from 60 m/s to 183 m/s in 10.0. what is the rate of acceleration a. 6.0 m/s^2 b. 12.3 m/s^2 c. 18.3 m/s^2 d. 24.3 m/s^2
*February 28, 2012 by Anonymous*

**science**

A comet experiences uniform acceleration from 60 m/s to 183 m/s in 10.0 s. What is its rate of acceleration?
*June 20, 2013 by Anonymous*

**college Physics**

A car is traveling at 7.0 m/s when the driver applies the brakes. the car move 1.5m before it comes toa complete stop. if the car had been moving at 14m/s how far would it have continued to move after the brakes were applied? assume the braking force is constant. what is the ...
*October 10, 2010 by Elizabeth*

**Science**

A car is traveling down a hill that makes an angle of 14° with the horizontal. The driver applies her brakes, and the wheels lock so that the car begins to skid. The coefficient of kinetic friction between the tires and the road is μK = 0.55.
*October 14, 2012 by Anonymous*

**physics**

A 49.7-cm diameter disk rotates with a constant angular acceleration of 2.7 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time.
*October 23, 2010 by Anonymous*

**physical science test tommorrow**

what is the difference between constant acceleration and uniform acceleration
*February 27, 2008 by sam*

**Physics**

A car traveling 56 km/h is 24 m from a barrier when the driver slams on the brakes. The car hits the barrier 2s later a) what is the car's constant deceleration before the impact? b)How fast is the car traveling at impact? I don't get the impact parts... I think you have to ...
*September 12, 2006 by Jason*

**phsyics**

A 975-kg car accelerates. The magnitude of the average net force acting on the car is 3478 N, what is the acceleration of the car?
*December 15, 2011 by cheryl*

**physics**

a net horizontal force of 7000N is applied to a car which is at rest.the weight of the car is 90000N. what will be the speed of the car after 10 second?
*March 31, 2012 by sugin*

**physics help go!**

Two cars are traveling at the same speed of 27 m/s on a curve that has a radius of 126 m. Car A has a mass of 1020 kg, and car B has a mass of 1670 kg. Find (a) the magnitude of the centripetal acceleration and (b) the magnitude of the centripetal force for Car A, (c) the ...
*February 10, 2011 by Hannah*

**science**

A race car travels northward on a straight, level track at a constant speed travels 0.756 km in 18.0 s. The return trip over the same track is made in 23.0 s
*September 18, 2011 by tina*

**Physics**

A car travels 105 km to the north at 65km/hr and then turns around and travels 25km at 80km/hr. What is the difference between the average speed and the average velocity on this trip?
*February 2, 2012 by Alexis*

**PHYSICS**

An automobile travels 30 km due east on a level road . It then turns due north at an intersection and travels 40km before stopping. What is the the resultant displacement of the car?
*October 16, 2013 by Peter*

**physics**

Q2. A box rests on the (frictionless) bed of a truck. The truck driver starts the truck and accelerates forward. The box immediately starts to slide toward the rear of the truck. Discuss the motion of the box, in terms of Newton’s laws, as seen (a) by Mary standing on the ...
*November 14, 2007 by beckii*

**Physics**

Consider a skateboarder who starts from rest at the top of a 14.6 m-long ramp that is inclined at an angle of 13.0° to the horizontal. Assuming that the skateboarder's acceleration is g sin 13.0°, find his speed when he reaches the bottom of the ramp in 3.13 s.
*September 2, 2010 by Fallon*

**College Physics**

A 1200 kg airplane starts from rest and with a constant average forward acceleration of magbitude 5.0 m/s, reaches its takeoff speed in 9.00 s. The runway is 300 m long. What is the plane's takeoff speed?
*September 14, 2010 by Dakota*

**Physics**

An airplane requires 420 m of runway to take off from an airstrip. If the plane starts from rest and it takes 32 s to lift off, with what velocity does it leave the ground? What was the average acceleration of the plane?
*April 22, 2014 by Corey Brown*

**physics**

An airplane requires 420 m of runway to take off from an airstrip. If the plane starts from rest and it takes 32 s to lift off, with what velocity does it leave the ground? What was the average acceleration of the plane?
*June 3, 2014 by grey*

**Physics**

A car with a mass of 1380 kg is moving around a curve with a radius of 50 m at a constant speed of 25 m/s (about 56 MPH). (a) What is the centripetal acceleration of the car? 1 m/s2 (b) What is the magnitude of the force required to produce this centripetal acceleration? 2 N
*February 22, 2012 by Mina*

**physics **

car with a mass of 1280 kg is moving around a curve with a radius of 50 m at a constant speed of 10 m/s (about 22 MPH). (a) What is the centripetal acceleration of the car? (b) What is the magnitude of the force required to produce this centripetal acceleration
*March 31, 2014 by candi gonzalez*

**Physics**

You buy yourself a new Lamborghini which can accelerate from 0 to 62 mph in 2.5 seconds. 1.) what is the magnitude of the car's acceleration in SI units? 2.)the latest figures on speeding related car accident fatalities show 32788 deaths per year in the united states. in order...
*February 9, 2014 by Juanita*

**physics**

a) calculate the acceleration of a 0.55-m-diameter car tire while the car is traveling at a constant speed of 25m/sec. b) compare this with acceleration experienced by a jet car tire of diameter 1.0m when setting a land speed record of 310m/sec
*September 26, 2011 by lucy *

**Physics**

Need Help with physics! Two cars drive on a straight highway. At time t = 0, car 1 passes mile marker 0 traveling due east with a speed of 17.0 m/s. At the same time, car 2 is 1.3 km east of mile marker 0 traveling at 30.0 m/s due west. Car 1 is speeding up with an ...
*October 4, 2012 by Brandon*

**physics**

A 1970 kg car traveling at 13.8 m/s collides with a 2960 kg car that is initally at rest at a stoplight. The cars stick together and move 1.91 m before friction causes them to stop. Determine the coefficient of kinetic friction between the cars and the road, assuming that the ...
*October 12, 2011 by sidney*

**Help again...Math!!**

Two cars leave town going in the same direction. One travels 55 mph and the other travels 65 mph How long will it take before they are 180 miles apart? Hint: We do know that one car is 180 miles ahead of the other, so the slow car's distance can be represented by " d " and the...
*November 15, 2006 by Jessica*

**Physics !!**

3)A car increases its speed from 5 m/s to 35 m/s in a distance of 75 m a)what is the acceleration of the car? b)How long did it take the car to travel the 75 m? someone PLEASE help me willyah!
*June 10, 2012 by Anonymous*

**General physics**

Two block are arranged at the end of a massless string. The system starts from rest. When the 4.01 kg mass fallen through 0.336m, its downward speed is 1.32 m/s. the acceleration gravity is 9.8 m/s^2. what is the frictional force between the 5.3 kg mass and the table?
*October 3, 2011 by Jane Mitchell*

**physics**

You are driving to the grocery store at 12.2 m/s. You are 193.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.790 s and that your car brakes with constant acceleration. How far are you from the intersection when you begin to apply...
*October 8, 2008 by Vishnu*

**Physics - URGENT**

A car is speeding at constant velocity of 30ms-1 in an 80kmh-1 zone as it passes a stationary police motorcycle hiding. The motorcycle starts to accelerate at 5ms-2 at the same instant the car passes it and continues for 8 seconds. It then stops accelerating and maintains its ...
*March 10, 2013 by Mariya*

**Physics - URGENT**

A car is speeding at constant velocity of 30ms-1 in an 80kmh-1 zone as it passes a stationary police motorcycle hiding. The motorcycle starts to accelerate at 5ms-2 at the same instant the car passes it and continues for 8 seconds. It then stops accelerating and maintains its ...
*March 10, 2013 by Mariya*

**maths**

a car is traveling at 100km/hr and rounds a slight curve to the right of 30 degrees. the driver hits a mailbox of 80kgs on the curb with the left front of his car. how far does the mailbox move and in what direction to the car's travel does it move. thank you for your help. p....
*December 26, 2011 by cisco*

**Physics**

Suppose that the coefficient of kinetic friction of the rubber of a car tire and the street is Uk = 0.8. What is the deceleration of the car on a flat street if the driver brakes sharply, so all the wheels are locked and skidding?
*October 23, 2010 by Lisa*

**Physics**

A 4.29 kg block starts from rest at the top of a 31.8 degrees incline and slides 2.22 m down the incline in 1.22 s. The acceleration of gravity is 9.8 m/s^2. What is the acceleration of the block? Answer in units of m/s^2 What is the coeﬃcient of kinetic friction ...
*November 19, 2012 by Anonymous*

**Algebra 2**

A car enters a interstate highway 15 mi north of the city. The car travels due north at an avrage speed of 62.5 mph. Write an equation to model the car's distance from the city after traveling for h hours.
*April 9, 2010 by Carrie*

**physics**

A box accidentally falls from the back of a truck and hits the groud with a speed of 15m/s forward. It slides along the groud with uniform acceleration for a distance of 45m before coming to rest. Determine the time it takes to slide the last 10m.
*October 28, 2010 by Anjali*

**Calculus**

A car traveling at 72 mph starts braking and decelerates at a constant rate. the car takes 1/9 of a mile to stop. Find, to the nearest half-second, how long it took the car to cover the 1/9 of a mile. I don't need the whole thing done. Just don't know how to start!
*February 16, 2014 by Anonomous*

**phys**

A mechanic pushes a 2.0 103 kg car from rest to a speed of v, doing 5350 J of work in the process. During this time, the car moves 29.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v m/s (b) the horizontal force exerted on the car
*October 27, 2010 by hpj*

**Physics**

A mechanic pushes a 2.60 103-kg car from rest to a speed of v, doing 5,000 J of work in the process. During this time, the car moves 21.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v? (b) the horizontal force exerted on the car?
*May 3, 2013 by Abdul A.*

**Physics**

A mechanic pushes a 2.60 103-kg car from rest to a speed of v, doing 5,000 J of work in the process. During this time, the car moves 21.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v? (b) the horizontal force exerted on the car?
*May 7, 2013 by Abdalla A.*

**physics**

The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s2, what is the mass of the car plus its occupants? 4.
*November 2, 2012 by Anonymous*

**Physics**

An 893 kg car passes over a bump in a road that follows the arc of a circle of radius 14.3 meters. A) What force does the road exert on the car as the car passes the highest point of the bump if the car travels 7.53 m/s. B) What is the max speed the car can have as it passes ...
*December 4, 2011 by Ryan*

**Physics 100**

A car traveling at a speed of 18 m/s (approximately 40 MPH) crashes into a solid concrete wall. The driver has a mass of 90 kg. a. What is the change in momentum of the driver as he comes to a stop: b. What impulse is required in order to produce this change in momentum: c. ...
*April 27, 2011 by Anonymous*

**Algebra 2**

Mary and Sue are both on bikes and leave from point A. Mary travels west at a uniform speed (x mi/hr). Sue travels north at 5mi/hr faster than Mary. After 2 hours, they are 50 miles apart. What is the speed of each girl?
*April 24, 2012 by Chelsea:)*

**Physics**

A 1230 -kg car is pushing an out-of-gear 2180 -kg truck that has a dead battery. When the driver steps on the accelerator, the drive wheels of the car push horizontally against the ground with a force of 4420N . The rolling friction of the car can be neglected, but the heavier...
*March 30, 2014 by Ntshade68*

**physics**

A certain car is capable of accelerating at a uniform rate of 0.93 m/s2. What is the magnitude of the car’s displacement as it accelerates uniformly from a speed of 86 km/h to one of 98 km/h? Answer in units of m
*November 11, 2012 by Anne*

**physics**

A certain car is capable of accelerating at a uniform rate of 0.84 m/s 2 . What is the magnitude of the car’s displacement as it accelerates uniformly from a speed of 84 km/h to one of 97 km/h? Answer in units of m
*December 13, 2012 by Anonymous*

**Physics**

A 76.3-kN car is travelling at 68.7 mph when the driver decides to exit the freeway by going up a ramp. After coasting 355 m along the exit ramp the car\'s speed is 30.1 mph, and it is h = 14.3 m above the freeway. What is the magnitude of the average drag force exerted on the...
*April 29, 2013 by Help*

**Physics**

A speedboat starts from rest and accelerates at +2.07 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.523 m/s2. Following this, the boat accelerates at -1.55 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 5, 2010 by Emily*

**Physics**

A speedboat starts from rest and accelerates at +2.07 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.523 m/s2. Following this, the boat accelerates at -1.55 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 6, 2010 by Emily*

**Physics**

A speedboat starts from rest and accelerates at +1.94 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.58 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 6, 2010 by Bala*

**physics**

A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.44 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 8, 2010 by Andres*

**physics**

A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.44 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 8, 2010 by Andres*

**Physics**

A dock worker applies a constant horizontal force of 77.0 to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 9.00 in the first 7.00 . What is the mass of the block of ice? Do it in steps. First compute the ...
*October 3, 2006 by Morgan*

**physics**

A car has a mass of 1.34 × 10^3 kg. If the force acting on the car is 6.46 × 10^3 N to the east, what is the car’s acceleration?
*October 20, 2011 by Stephen*

**Physics (College)**

A car starts from rest at a stop sign. It accelerates at 2.0 m/s^2for 6.0 seconds, coasts for 2.0 s, and then slows down at a rate of 1.5 m/s^2 for the next stop sign. How far apart are the stop signs?
*November 4, 2011 by Set8*

**Physics**

A test car travels in a straight line along the axis. The graph in the figure shows the car's position as a function of time
*February 22, 2013 by Dani*

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