a force accelerates a car of mass 1240 kg at 2 km/hr. what is the force?
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physics
a force accelerates a car of mass 1240 kg at 2 km/hr. what is the force? i need help how do you get the acceleration? i know f=ma but what's the a? or is this the wrong equation? 
Physics
A car, starting from rest, accelerates in the positive x direction. It has a mass of 1.10 x 103 kg and maintains an acceleration of 4.6 m/s^2 for 5 s. Assume that a single horizontal force accelerates the vehicle. Determine the power generated by this force. 
Math m1
A car of mass 1 tonne is towing a trailer of mass 400kg. They are connected by a rigid rod. Initially they are travelling at a constant speed. The car then accelerates. If the force in the rod is 600 N, find the acceleration of the car and the driving force of the engine. 
physics
A car of mass 1200kg accelerates from rest to a speed of 8.0ms in a time of 2.0s. a)calc the forward driving force acting on the car while it is accelerating. b)At high speeds the resistive frictional force F produced by the air on a body moving with velocity V is given by the... 
physics
A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 × 103 kg and maintains an acceleration of +4.40 m/s2 for 2.60 s. Assume that a single horizontal force (not shown) accelerates the vehicle. Determine the average power generated... 
physics
A mass pulled by a constant force accelerates from 10 cm/s to 40 cm/s in 5.5 s. A second force accelerates the same mass from rest to 105 cm/s in 15.0 s. If the first force is known to be 5.0 N, that what is the magnitude of the second force? 
physics
A car, mass  1950 kg, accelerates at +2.33 m/s (squared). Find the magnitude of the normal force acting on the car. If later, when the car is cruising at 26.5 m/s, the driver applies a force of magnitude 10,000 N to stop the car. What is the distance it takes for the car to ... 
Physics
A tow truck pulls a car from rest onto a level road. The tow truck exerts a horizontal force of 1500 N on the car. The frictional force on the car is 810 N. Calculate the work done by each of the following forces on the car as the car moves forward 12 m: (a) the force of the ... 
Physics
A car X moving of mass 500kg accelerates at 1m/s2 when the force due to the engine is 600N. Starting from rest, a car of mass 1000kg accelerates steadily to 20m/s in 10 secs. What is the average power developed 
PHYSICS FORCE
A car moving at a speed of 48.0 km/h accelerates 100.0 m up a steep hill, so that at the top of the hill its sped is 59.0 km/h. if the car's mass is 1100 kg, what is the magnitude of the net force acting on it? i already know you have to change it to m/s but what do you do ... 
physics
lots of questions 1) a 2N and 6N force pull on an object to the right and a 4N force pulls to the left a 0.5 kg object what is the net force on the object 2)a 20mkg bike accelerates at 10m/s2 with what force was the person pedaling 3)if a person is pushing a cart with a force ... 
Physics help
A car travels in a circle whose radius is 31 m, with a speed of 19 m/s. (1) What is the magnitude of the car's acceleration? _____ m/s2 (2) What is the nature (origin) of the horizontal force on the car? (What is exerting the force?) The force causing the car to turn is: ... 
physics
If only external forces can cause the center of mass of a system of particles to accelerate, how can a car on level ground ever accelerate? We normally think of the car’s engine as supplying the force needed to accelerate the car, but is this true? Where does the external ... 
general science
A car mass 500 kg accelerates 1m/s sqare the force due to eng is 600N the average frictional force is 
physical
When they start to move,car A exerts a force of 600N on its end of the towrope.The frictional force on car B when it accelerates,is 300N And its masses is 1200kg(a)calculate car bs initial acceleration(b)after a while the cars move at a constant velocity and car A exerts a ... 
science please help asap
2. A body with a mass of 490kg is pulled along a horizontal plane at a constant velocity.the pulling force is 1.2 kN is making an angle of 20degrees with the plane. A.determine the coefficient of friction 3.a force of 318.123N accelerates a car at 3m/s^2 from rest for ... 
physics
A certain sports car accelerates from 0 to 60 mph in 9.0 s (average acceleration = 3.0 m/s2). The mass of the car is 1354 kg. The average backward force due to air drag during acceleration is 280 N. Find the forward force required to give the car this acceleration. 
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? 
science please help asap
1. A 2. A body with a mass of 490kg is pulled along a horizontal plane at a constant velocity.the pulling force is 1.2 kN is making an angle of 20degrees with the plane. A.determine the coefficient of friction 3.a force of 318.123N accelerates a car at 3m/s^2 from rest for ... 
Physics
A 1200 kg car accelerates to the right at 7m/s2 along a special frictionless track. Determine the magnitude and direction of the force the engine exerts to accelerate the car? A wind blows heavy winds into the car's path.As a result the car's acceleration slows to 4.5m/s2. If ... 
physics
The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car? 
PHYSICS
The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car? 
AP physics
A 1280kg car starts from rest and accelerates to 80 km/h in 23.0 s. Friction exerts an average force of 449 N on the car during this time. (a) What is the net work done on the car? J (b) How far does the car move during its acceleration? m (c) What is the net force exerted on... 
physics
A short train (an engine plus four cars) is accelerating at 1.10 . The mass of each car is 38000 , and each car has negligible frictional forces acting on it. In solving this problem, note the importance of selecting the correct set of cars to isolate as your object. a.What is... 
science
a 2 kg mass accelerates at 20 m/s/s while being pushed by a 44 N force. Find the force of friction. Net force = Force pushing  Force friction. The net force here is 2 kg x 20 m/s/s. 
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 ... 
physics
A net force of 5000.0 N accelerates a car from rest to 93.3 km/h (meter per second) in 4.1s (a)what is the mass of the car? (b) What is the weight of the car? 
Physics
A race car has a mass of 714 kg. It accelerates uniformly from rest, and travels 55 m in 2.95 s. What is the acceleration of the car? And, what is the net force acting on the car? 
physics
A car of mass 1200 kg starts from rest, accelerates uniformly to a speed of 4.0 m/s in 2.0 s and continues moving at this constant speed in a horizontal straight line for an additional 10 s. The brakes are then applied and the car is brought to rest in 4.0 s. A constant ... 
physics
If you exert a force of 60 N on a car, it moves at a constant velocity. (i.e there is a frictional force of 60 N) What is its mass when you exert 80 N on it, it accelerates from rest to 2.0 m/s in 100 seconds? 
physics 11
A 1200 kg car on a horizontal surface starts from rest and accelerates uniformly to 72 km/h in 20.0 s. Friction exets an average force of 450 N on the car during this time. a) what is the net work done on the car b) how far does the car move during this acceleration c) what is... 
Physics
A car of mass 550kg accelerates steadily from rest to 25m/s in 30s. a). What is its acceleration? b). What resultant force produces this acceleration? c). The actual force will be greater, why? 
physics
a car of the mass m kg travels on a straight,level road. the driving force of the engine is 4000N and the total resistance due to air friction and tires on the road is 300N. if the car accelerates at 3m/s2 ,what is the mass m of the car 
Mechanics
What force accelerates a 3kg mass at a rate of 4m/s^2? Assuming this is on smooth surface with no frictional force Force = mass x acceleration F = 3 x 4 F = 12N If there is a frictional force will have to look at the acceleration in the opposing direction first. thanks again 
physical science
a car has a mass of 1000kg and accelerates at 2m/s/s. What is the magnitude of the force exerted on the car. 
physics
A 1,500 kg car starts from rest and accelerates to a speed of 12 m/s over a distance of 68 m a) calculate the total work on the car b) calculate the net force that caused the car to accelerate (constant force) 
Science
A hirozontal force F works on a body of mass m1 and accelerates it by 5m/s^2. The same magnitude of horizontal force is exerted to another body of mass m2, which accerelates it by 2m/s^2. If m1 and m2 are combined, the acceleration provided by the force F is ... 
Phys
Three blocks on a frictionless horizontal surface are in contact with each other. A force F is applied to block A (mass mA). (a) Draw a free body diagram for each block. I've drawn it and it looks like this, but I'm not sure if I'm including everything. ^normal force F>... 
physics
When you step on the accelerator to increase the speed of your car, the force that accelerates the car is eitheir the force of your foot on the accelerator, the force of friction of the road on the tires,the force of the engine on the drive shaft, or the normal force of the ... 
physics
A 72 N force accelerates mass m1 by 5.0 m/s^2. The same force acts on another mass m2. What acceleration will the same force impart to the two masses when they are joined together? 
Physics
an 1100 kg car accelerates from rest at 3.4 m/s2. if the horizontal force exerted on the wheels by the road is 5600 N, what force must be resisting the motion of the car? use a free body diagram to illustrate your answer. 
Physics 30
an 1100 kg car accelerates from rest at 3.4 m/s2. if the horizontal force exetred on the wheels by the road is 5600 N, what force must be resisting the motion of the car? use a free body diagram to illustrate your answer 
physics
1. A snowmobile, with a mass of 530 kg, applied a force of 410 N backwards on the snow. a. What force is responsible for the snowmobile’s resulting forward motion? (Hint: Think action–reaction force pairs.) b. If the force of friction on the snowmobile is 187 N backwards, ... 
Physics
A snowmobile, with a mass of 530 kg, applied a force of 410 N backwards on the snow. a) What force is responsible for the snowmobile’s resulting forward motion? (Hint: Think action–reaction force pairs.) b) If the force of friction on the snowmobile is 187 N backwards, ... 
physics
a car of mass 1200 kg starts from rest, accelerates uniformly to a speed 4ms1 in 2 seconds and continues moving at this constant speed in a horizontal straight line for additional 10s. the brakes are then applied and the car is brought to rest in 4s. a constant resistance ... 
Physics
A car of mass 1200kg starts from rest, accelerates uniformly to a speed of 4.0 meters per second in 2.0 seconds and continues moving at this constant speed in a horizontal straight line for an additional 10 seconds. the brakes are then applied and the car is brought to rest in... 
physics again (check answers please)
What net force increases a velocity of a car from 20 m/s to 35 m/s in 8.0 s if the mass of the car is 1600 kg? (3000 N). What force would cause the car to stop? (3000N) What coefficient of friction is needed to supply the force of friction? (.0191) are they correct? 
physics
a car of mass 50kg accelerates on a straight level road with coeficient of friction 0,3.what is the minimum force required for the car that to start moving? 
physics
a car of mass 50kg accelerates on a straight level road with coeficient of friction 0,3.what is the minimum force required for the car that to start moving? 
Science
A car is driving up a hill with a force of 40N. The wind is blowing downhill with a force of 10N. Gravity is affecting th car with a force of 20N. The force of friction is 9N. What is the net force, including direction, of this situation? 
physics
A car is rounding a circular curve of radius r on a banked turn. As the drawing indicates, there are two forces acting on the car, its weight mg and the normal force FN exerted on it by the road. Which force, or force component, provides the centripetal force that keeps the ... 
Physics
A car is driven at a constant speed of 21 m/s (76km/h) down a road. The car's engine delivers 52 kW of power. Calculate the average force of friction that is resisting the motion of the car. My thinking: Convert 52 kW to 5200 W. Force of friction = force applied because there ... 
Physics. PLEASE HELP!!
A small car of mass 985 kg is parked behind a small truck of mass 1551 kg on a level road. The brakes of both the car and the truck are off so that they are free to roll with negligible friction. A 83 kg woman sitting on the tailgate of the truck shoves the car away by ... 
physics
a net force of 5000N accelerates a car from rest to 20m/s in 10s. what is the net force exerted on the car 
force
A girl on roller skates accelerates at a rate of 2m/s2 with a force of 100N. is her mass F=ma m is mass in kg a is acceleration in m/s^2 F is in Newtons solve for m. A girl on roller skates accelerates at a rate of 2m/s2 with a force of 100N. what is her mass is when somthinh ... 
physics
a 1240 kg automobile stops in a distance of 41m. if initial velocity was 22.5m/s, what force did the road exert on the car to stop it? Answer pls... Thank You 
physics
a 1240 kg automobile stops in a distance of 41m. if initial velocity was 22.5m/s, what force did the road exert on the car to stop it? Answer pls... Thank You 
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. 
Engineering science n3
a train with a mass of 120Mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN mass of the train. The force in the draw bar is 30kN. Calculate: a) The force required for a constant speed b) The force that cause acceleration c)The acceleration 
Physics
A 6.0 kg mass is pulled horizontally along a level surface where the coefficient of friction is 0.20. The mass accelerates at 0.68 m/s2. a) What is the friction force acting on the mass? b) What applied force is being used to pull the mass? 
PHYSICS
a 72N force accelerates mass m, by 5.0 m/s^2 the same force acts on another mass m2 and imparts to it an acceleration of 20.0 m/s^2. what acceleration will the same force impart to the two masses when they are joined? 
Physics
Imagine a fender bender between a large truck and a small car. During the impact, Choose one answer. a. the truck exerts a greater amount of force on the car than the car exerts on the truck b. the car exerts a greater amount of force on the truck than the truck exerts on the ... 
physics
A body pulled by a constant force accelerates from 10 cm/s to 35 cm/s in 3.5 s. A second force accelerates the same body from rest to 110 cm/s in 10.5 s. If the first force is known to be 5.0 N, that what is the second force? 
science.......,,....
train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the drawbar locomotive is 80kN Calculate a. The force required for constant speed b. The force that causes the acceleration c. ... 
engineering science n3
A train with a mass of 120Mg accelerates uniformly on a horizontal track.the resistance to movement is 5N per KN of the mass of the train. The force in the drawbar of the locomotive is 80KN.calculate: 1.the force required for the constant speed. 2.the force that causes the ... 
Physics
A car with its passengers have a total mass of 4200kg .the car is travelling along a horizontal road when it moves ,it experiences a forward driving force of magnitude F newtons and a constant resistance force(opposite to driving force)of 850N a)what is the value of F if the ... 
physics need urgent helpp
i have tried everything, please helpp A snowmobile, with a mass of 530 kg, applied a force of 410 N backwards on the snow. What force is responsible for the snowmobile’s resulting forward motion? (Hint: Think action–reaction force pairs.) If the force of friction on the ... 
Science
Moving at 20 m/s , a remote controlled car of mass 1000kg hits a pile of sand and comes to rest in 10 s. Find the average force that acted to stop the car. The same car now hits a wall and comes to rest in 1s. Find the average force that acted to stop the car. Use knowledge ... 
science please help asap
1.a train with a mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the draw bar of the locomotive is 80kN. Calculate A.The force required for the constant speed. B. The force that causes ... 
physics
Consider two cars, a very large one like a Hummer (mass 5m) and a small one like a Mini Cooper (mass m), both starting at the same point race toward the edge of a cliff. Assume that each car is accelerated by a constant force (same size force on each car) to the edge of the ... 
physics
A person pushes a 10 kg box from rest and accelerates it to a speed of 3.2 m/s with a constant force. If the box is pushed for a time of 2.6 s, what is the force exerted by the person? force*time=mass*changeinvelocity solve for force. 
science please help and explain asap
A train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the drawbar locomotive is 80kN Calculate a. The force required for constant speed b. The force that causes the acceleration c... 
physics
A sports car of mass 950kg (including the driver) crosses the rounded top of a hill (radius = 95m) at 22m/s. Determine a) the normal force exerted by the road on the car, b) the normal force exerted by the car on the 72kg driver, and c) the car speed at which the normal force ... 
Physics
A car with a mass of 1500kg starts from rest and accelerates to a speed of 18m/s in 12s. Assume that the force of resistance remains constant at 400N during this time. What is the average power developed by the car's engine? 
AP Physics
A car with a mass of 1200 kg kg starts from rest and accelerates to a speed of 12 m/s in 12.2 s. Assume that the force of resistance remains constant at 328 N during this time. What is the average power developed by the car’s engine? Answer in units of W. 
math
Boris gets paid an 8% commission on every car he sells. Last week, he made a commission of $1240. What was the price of the car he sold? a)15500 b)15000 c)12500 d)1550 I got answer a by dividing 1240 by .08. Is this right? 
Physics Help Please!!!!
A man pushes a stalled car with a horizontal force of 312 N. The car does not move. What is the frictional drag force on the car? A waterskier (mass=60kg) is pulled by a boat with a horizontal force of 300N. The boat and the skier have a constant velocity. What is the ... 
physics
A car is rounding a circular curve of radius r on a banked turn. As the drawing indicates, there are two forces acting on the car, its weight mg and the normal force FN exerted on it by the road. Which force, or force component, provides the centripetal force that keeps the ... 
Physics
A 1300 kg El Camino is parked on a 20 degree hill.(20 degrees above x axis)The driver of the El Camino returns, starts the car, and accelerates up the hill at 2 m/s^2. Find SigmaFx and SigmaFy. What is the normal Force acting on the car, and what is the force being supplied ... 
Physics Help, Please!
When a car goes around a curve (without skidding), on a level road, Select one: a. no friction force is needed because the car simply follows the road. b. the friction force of the road on the car increases when the car’s speed decreases. c. the friction force of the road on... 
scienc
I'm driving my car of mass 1000 kg at 100 km/hr when I accidentally hit the rear end of a truck of mass 5000 kg traveling in the same direction at 90 km/hr. My car and the truck lock together and move as a single object. Let F1 be the force the truck exerts on my car and let ... 
physics
an object with a mass of 1500g accelerates 10.0 m/s2 when an unknown force is applied to it. What is the amount of the force? 
Physics
A racecar driver in an 825kg car accelerates from rest to a velocity of 21.5 m/s in 0.55 s. What is the net force acting on the car? I found out using A=v/t that the horizontal acceleration is 39.1 m/s^2. My problem now is this... Is the net force just F=ma? Or do I have to ... 
Physics
A 6490 kg helicopter accelerates upward at 0.59 m/s2 while lifting a 1180 kg car. (a) What is the lift force exerted by the air on the rotors? N (b) What is the tension in the cable (ignore its mass) that connects the car to the helicopter? 
Science
A car weights 1.30 X 10^4 N is initially moving at a speed of 40km/h when the brakes are applied and the car is brought to a stop in 15m. Assuming that the force that srops the car is constant. find a)magnitude of the force b)time required for the change in speed. If the ... 
physics
you are driving your new car 14.0m/s east when you slam on your brakes to avoiavoid having your first collision. The force of friction on your car tires is 1.5kN and the combined mass of your car is 1200kg. Detemine the (a). direction of the frictional force causing your car ... 
Physics
A rollercoaster car has a mass of 1170 kg when fully loaded with passengers. As the car passes over the top of a circular hill of radius 16 m, its speed is not changing. (a) What are the magnitude and direction of the force of the track on the car at the top of the hill if ... 
phsyics
A 975kg car accelerates. The magnitude of the average net force acting on the car is 3478 N, what is the acceleration of the car? 
physics
A car traveling at 53 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 65 cm (with respect to the road) while being brought to rest by an air bag. What magnitude of foce (assume constant) acts on the passengers's upper torso, which is 41 kg? I ... 
Physics
A 2.3 × 103 kg car accelerates from rest under the action of two forces. One is a forward force of 1141 N provided by traction between the wheels and the road. The other is a 947 N resistive force due to various frictional forces. How far must the car travel for its speed to ... 
PHYSICS
If it take a force of 10,000N to accelerate a car with a mass of 1250KG at a rate of 6m/s^2, what is the force of friction acting against the car? 
Physics
A small car (mass 380 ) is pushing a large truck (mass 1000 ) due east on a level road. The car exerts a horizontal force of 1580 on the truck. What is the magnitude of the force that the truck exerts on the car? 
physics
a 2500 kg car accelerates from rest under the act of two forces. 1.) a forward force of 1400 N between the wheels and the road. 2.) 1140 resistive force due to various frictional forces. Use the workkinetic theorem to determine how far the car must travel for its speed to ... 
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 centerseeking force on the car? (ie. centripetal force... 
Science PHYSICS
SO desperate with help with this. What is the magnitude of the acceleration that this force will cause when applied to a car with a mass of 1.1x10³Kg Then calculate the final speed of the car (above) assuming that it was standing still initially and that the force of 5.0 x 10... 
Algebra
While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If the a passenger experiences a force of 100.8 newtons when the car is moving at a speed ... 
11th grade Physics
Consider a situation in which your car, when coasting down a straight downhill road, acquires a constant velocity. In this situation: a. gravity is the only force on the car b. friction is the only force acting on the car c. the net force acting on the car is zero d. there ... 
Physics
You pull upward on a stuffed suitcase with a force of 118 N, and it accelerates upward at 0.765 m/s2. What is the mass of the suitcase? I tried to find the mass and got the mass being 154.25 kg but that isn't right. Can someone explain how to find the mass? Would you use sigma... 
Dynamics  Physics
You pull upward on a stuffed suitcase with a force of 118 N, and it accelerates upward at 0.765 m/s2. What is the mass of the suitcase? I tried to find the mass and got the mass being 90.27kg but that isn't right. Can someone explain how to find the mass. Would you use sigma ... 
Physics
A 2.0×103 kg car accelerates from rest under the action of two forces. One is a forward force of 1153 N provided by traction between the wheels and the road. The other is a 939 N resistive force due to various frictional forces. How far must the car travel for its speed to ...