# speed

26,694 results, page 55

### Maths

A train travels from city A to city B. It leaves A at 11:15 AM and arrives at B at 2:20 PM. The distance between the cities is 123 miles. What was the average speed of the train in miles per hour (mph)? The average speed is ___ miles per hour.

### Physics

You stand at the bottom of an 8.0-m-long ramp that is inclined at 37∘ above the horizontal. You grab packages off a conveyor belt and propel them up the ramp. The coefficient of kinetic friction between the packages and the ramp is μk=0.30. A) What speed do you need to give...

### Physics

You're an investigator for the National Transportation Safety Board, examining a subway accident in which a train going at 88km/h km/h collided with a slower train traveling in the same direction at 25km/h km/h . Your job is to determine the relative speed of the collision, to...

### speed-distance-time

Please help me with this problem. Two cars started from the same point and traveled on a straight course in opposite directions for exactly 2 hours, at which time they were 208 miles apart. If one car traveled, on average, 8 miles per hour faster than the other car, what was ...

### physics

A car is safely negotiating an unbanked circular turn at a speed of 17.2 m/s. The maximum static frictional force acts on the tires. Suddenly a wet patch in the road reduces the maximum static frictional force by a factor of three. If the car is to continue safely around the ...

### Physics

Tom the cat is chasing Jerry the mouse across a table surface 2.4 m oﬀ the ﬂoor. Jerry steps out of the way at the last second, and Tom slides oﬀ the edge of the table at a speed of 4.8 m/s. Where will Tom strike the ﬂoor? The acceleration of ...

### college physics

a) A light-rail commuter train accelerates at a rate of 1.25 m/s2. How long does it take it to reach its top speed of 80.0 km/h starting from rest? (b) The same train ordinarily decelerates at a rate of 1.75 m/s2. How long does it take to come to a stop from its top speed? (c...

### physics

In Figure 20.2 is a velocity selector that can be used to measure the speed of a charged particle. A beam of particles is directed along the axis of the instrument. A parallel plate capacitor sets up an electric field E which is oriented perpendicular to a uniform magnetic ...

### math

Can someone please check my math questions? My answers are under the questions... I would really appreciate any help Questions~ 16. A car’s speed before a sudden stop can be estimated by the formula S = √(30gk) , where S = speed of the car in mph, g = drag factor, and ...

### math

Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the distance of the skid ...

### math

Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the distance of the skid ...

### algebra

Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the distance of the skid ...

### vector geometry

Suppose a fixed cannon is to fire a projectile at an enemy tank, which is moving toward the cannon at a speed of 15 mph. If the cannon is to fire at the moment the tank is 3 miles from the cannon and the muzzle speed of the cannon is 1100 mph, what is the correct equation to ...

### physics

It is well known that bullets and other missiles fired at Superman simply bounce off his chest. Suppose that a gangster sprays Superman's chest with 8 g bullets at the rate of 105 bullets/min, the speed of each bullet being 450 m/s. Suppose too that the bullets rebound ...

### Physics

It is well known that bullets and other missiles fired at Superman simply bounce off his chest. Suppose that a gangster sprays Superman's chest with 8 g bullets at the rate of 110 bullets/min, the speed of each bullet being 550 m/s. Suppose too that the bullets rebound ...

### Physics

The displacement of a standing wave on a string is given by D=3.6sin(.54x)cos(37t), where x and D are in centimeters and t is in seconds. What is the distance in cm between the nodes in centimeters? Give the amplitude of each of the component waves, meaning that there two, in ...

### phyisics

a cart of weight 25N is released at the top of inclined plane of length 1m, which makes an angle of 30° with the ground .it rolls down the plane and hits another cart of weight 40N at the bottom of the inclined plane. calculate the speed of first cart at the bottom of the ...

### math

Alright, let's say you want to get from one point to another, in a 3D box. all points have an x, y and z coordinate. Point A has coordinates (25,30,5) while Point B has coordinates (50,26,18). The only given variable other than the coordinates is the speed you are traveling. ...

### College Physics

A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 29 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 135 m), the block swings toward the outside of the ...

### Physics

While you are sitting on a park bench with your friend, you grab his hat and start running in a straight line away from him. Over the first 49.7m, you accelerate at 1.00m/s^2 up to your maximum running speed. You then continue at you maximum running speed for 7.02s more before...

### math

4) The distance needed to bring a truck to a stop varies as the square of its speed. If a truck travels at a speed of 55 mph it needs 79 feet to stop. What is the stopping distance of the truck travelling at 70 mph? 5) A principal of $7000 is invested in an account paying an ...

### physics

A woman with mass of 63 kg stands at the rim of a horizontal table having a moment of inertia of 520 kg m2 and a radius of 1.5 m. The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then starts walking ...

### Physics

A woman with mass of 57 kg stands at the rim of a horizontal table having a moment of inertia of 570 kg m2 and a radius of 1.5 m.The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then starts walking ...

### maths

A speed boat at the shore wants to overtake a sail boat that is 3 km out at sea. If the sail boat is travelling away from the shore at 1.5km/hr, how fast should the speed boat travel to overtake the sail boat in 5 minutes fro the shore?

### physics

I need help with solving these word problems. Marion rides her racing bicycle @ speed of 8 m/s. Bicycle wheels have a radius of 34 cm. What is the angular speed of wheels? How many times does each wheel go around during a 10-min race? A car tire has radius of 33cm. Tire turns ...

### Physics

I need help with solving these word problems. Marion rides her racing bicycle @ speed of 8 m/s. Bicycle wheels have a radius of 34 cm. What is the angular speed of wheels? How many times does each wheel go around during a 10-min race? A car tire has radius of 33cm. Tire turns ...

### 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...

### Physics

An airplane must reach a speed of 185 mi/h to take off. If the runway is 467 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully? m/s2 I have been trying the formula vf^2=Vi^2+2AD and solving for A SO my work has been 185...

### Physics (please help!!!!)

Lacking thrust, a glider can’t maintain level flight at constant speed in still air. It can, however, glide at a constant speed at a fixed downward angle. Find this angle in terms of the lift and drag coefficients CL and CD. Recall that lift is perpendicular to the glider’...

### physics

Which situations are examples of a particle with a non-zero acceleration? (Select all that are true for full credit.) a)A car driving around a circular track at constant speed. b)A child going back and forth on a swing c)A runner moving in a straight line with a constant speed...

### Business maths - Instalment purchases

The cash price of a speed boat is RM60,000. Under an installment plan, a buyer may pay a 30% down payment followed by monthly payments for 5 years. If the interest is 6% on the reducing balance, calculate (i) the amount of interest using the constant ratio formula, (ii) the ...

### Physics

A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m waterfall. The spy's ...

### Physics

A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m waterfall. The spy's ...

### Physics

A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m waterfall. The spy's ...

### Kinetic energy

steel ball of mass 0.310 kg is fastened to a cord that is 86.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal, as shown in the figure. At the bottom of its path, the ball strikes a 3.10 kg steel block initially at rest on a frictionless...

### Algebra

Molly left home and drove toward the ferry office at an average speed of 27 mph. Mark left two hours later and drove in the same direction but with an average speed of 45 mph. How long did Molly drive before Mark caught up? I am terrible at word problems and this is a review ...

### Physics

A man stands on a freely rotating platform, as shown, holding an exercise dumbbell in each hand. With outstretched arms, his angular speed is 1.5 rad/s. After he has pulled his arms in, as shown, his angular speed is 5 rad/s. What is the ratio of his final rotational KE to his...

### Math

A plane flies out of city A traveling an average of 325 mph, and reaches city B in 3 hours 24 minutes. On the return flight there is a tail wind that increases the plane's speed so it takes only 3 hours and 15 minutes to fly back to city A from city B. What is the speed of the...

### Physics relationship

Let W1 represent the work required to accelerate an object on a frictionless horizontal surface from rest to a speed of v. if W2 represents the work required to accelerate the same object on the same surface from a speed of v to 2v, then which one of the following is the ...

### Science

On page 111 of your reading material there is a problem that requires you to calculate the average speed for a daylong bus trip. The rest stops the driver made are included in the calculations because that is how the problem is defined. However, suppose the bus driver’s ...

### Physics

Another problem I need help with. An auto race is held on a circular track. A car completes one lap in a time of 20.1 s, with an average tangential speed of 43.1 m/s. Find the following. The following did not follow. I apologize for that. Here is the entire question. An auto ...

### Physics

A 14000 N automobile travels at a speed of 50 km/h northward along a street, and a 7500 N sports car travels at a speed of 62 km/h eastward along an intersecting street. (a) If neither driver brakes and the cars collide at the intersection and lock bumpers, what will the ...

### Physics

A 14000 N automobile travels at a speed of 50 km/h northward along a street, and a 7500 N sports car travels at a speed of 62 km/h eastward along an intersecting street. (a) If neither driver brakes and the cars collide at the intersection and lock bumpers, what will the ...

### Physics

Two baseballs, each with a mass of 0.157 kg, are separated by a distance of 379 m in outer space, far from any other objects. If the balls are released from rest, what speed do they have when their separation has decreased to 173 m? Ignore the gravitational effects from any ...

### physics

Both car A and car B leave school at the same time, traveling in the same direction. Car A travels at a constant speed of 70 km/h, while car B travels at a constant speed of 88 km/h.How far is Car A from school 2.1 h later?

### algebra

a long distance runer started running a course, running at an average speed of 2 mph. 1.33 hrs later, a cyclist travelde the same course at an average speed of 4 mph. how many hrs after the runner started did the cyclist overtake the runner? round answer to the nearest tenth.

### Physics

A 855 N crate rests on the floor. a) How much work is required to move it at constant speed 7.7 m along the floor against a friction force of 180 N? b) How much work is required to move it at constant speed 7.7 m vertically? I really NEED help I am very lost with physics!!!!

### Physical Science

DISTANCE-TIME for RUNNERS Time(s) 1 2 3 4 Sally's Distance(m) 2 4 6 8 Alonzo's Distance(m) 1 2 2 4 Make a distance-time graph that shows the motion of both runners. What is the average speed of each runner? Which runner stops briefly? Over what time interval do they both have ...

### Physics

Rapids in rivers occur when the river narrows. Consider a simple river where the cross-section can be modeled as a rectangle 60 m wide and 2 m deep. If the speed of the river water at this point is 1 m/s, what would be the speed of the water in m/s at a point further down ...

### science

a car manufacture advertise that a car goes "from zero to sixty in 8 seconds" is a description of: a) average speed b) instantaneous speed c) average velocity d) instantaneous acceleration a) and b) are incorrect since it's a change in velocity, whcih means it's acceleration. ...

### physics

As it passes over Grand Bahama Island, the eye of a hurricane is moving in a direction 48 degrees north of west with a speed of 13 km/h. Three hours later, it shifts due north, and its speed slows to 75 km/h. How far from Grand Bahama is the eye 4.50h after it passes over the ...

### Algebra 1

A boat towing a water skier leaves a dock and travels east at a speed of 20mph. Two minutes later, a second boat towing another skier leaves the dock in the same direction at a speed of 25mph. How long will it take the second boat to overtake the first boat? PLEASE help!? /:

### physics

As it passes over Grand Bahama Island, the eye of a hurricane is moving in a direction 62 north of west with a speed of 98 km/h. Three hours later, it shifts due north, and its speed slows to 30 km/h. How far from Grand Bahama is the eye 4.50 h after it passes over the island...

### physics....properties of matter....ASAP.pls

Helium gas occupies a volume of 0.04m^3 at a pressure of 2*10^5 N/m^2 and a temperature of 300K,calculate: 1.) the mass of helium 2.)the root mean square speed of its molecule 3.)the root mean square speed at 432K when the gas is heated at constant pressure to this temperature

### physics

A railway flat car is rushing along a level frictionless track at a speed of 45m/s. Mounted on the car and aimed forward is a cannon that fires 65 kg cannon balls with a muzzle speed of 625m/s. The total mass of the car, the cannon, and the large supply of cannon balls on the ...

### physics

A railway flat car is rushing along a level frictionless track at a speed of 45m/s. Mounted on the car and aimed forward is a cannon that fires 65 kg cannon balls with a muzzle speed of 625m/s. The total mass of the car, the cannon, and the large supply of cannon balls on the ...

### Physics

1.During a tennis serve,the top of the raquet,which is 15m from its pivot point,accelerats from rest to a speed of 10m/s in a time of 0.10s.Calculate the average tangential acceleration and the top of the racquet and also its angular acceleration. Tangential acceleration = ...

### physics

A train on one track moves in the same direction as a second train on the adjacent track. The first train, which is ahead of the second train and moves with a speed of 31.3 m/s, blows a horn whose frequency is 124 Hz. If the frequency heard on the second train is 136 Hz, what ...

### math

A teacher drove 280 miles to attend a mathematics conference and arrived 1 hour late. The teacher figured out that, had she increased her average speed by 5 mph, she would have arrived on time to the conference. What was her average rate of speed? *explanations would be ...

### Physics

A small rock is thrown vertically upward with a speed of 13.0 m/s from the edge of the roof of a 20.0 m tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected. A.) What is the speed of the rock just ...

### College Physics

A person riding a bicycle on level ground at a speed of 10.6 m/s throws a baseball forward at a speed of 19.1 m/s relative to the bicycle at an angle of 41° relative to the horizontal (x) direction. (a) If the ball is released from a height of 1.3 m, how far does the ball ...

### physics

A small rock is thrown vertically upward with a speed of 13.0 from the edge of the roof of a 31.0 tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected What is the speed of the rock just before it ...

### Physics

A pistol that fires a signal flare gives the flare an initial speed (muzzle speed) of 185 m/s. (a) If the flare is fired at an angle of 45° above the horizontal on the level salt flats of Utah, what is its horizontal range? You can ignore air resistance. (km) (b) If the flare...

### physics (help)

A meteorite of mass m= 1 ×104 kg is approaching head-on a planet of mass M= 3 ×1029 kg and radius R= 7 ×104 km. Assume that the meteorite is initially at a very large distance from the planet where it has a speed v0= 2 ×102 km/s. Take G= 6.67 ×10−11. Determine the ...

### Physics

A small rock is thrown vertically upward with a speed of 17.0m/s from the edge of the roof of a 32.0m tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected. What is the speed of the rock just before...

### Physics

A small rock is thrown vertically upward with a speed of 14.0m/s from the edge of the roof of a 25.0m tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected. What is the speed of the rock just before...

### physics

Calculate the force needed to bring a 1070–kg car to rest from a speed of 89.0 km/h in a distance of 110 m (a fairly typical distance for a non-panic stop). Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.34 m. Calculate the force...

### Physics

An 825-kg race car can drive around an unbanked turn at a maximum speed of 59 m/s without slipping. The turn has a radius of curvature of 135 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 2700 N on the car. a) What is the ...

### Physics

An 855-kg race car can drive around an unbanked turn at a maximum speed of 61 m/s without slipping. The turn has a radius of curvature of 165 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 10900 N on the car. (a) What is the ...

### PHYSICS

How do I solve this? A 700-kg race car can drive around an unbanked turn at a maximum speed of 41 m/s without slipping. The turn has a radius of 190 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 12000 N on the car. (a) What is ...

### SPORTS PHYSICS

How does friction, velocity, and acceleration apply to volleyball? -thanks a lot if u help! <3AMBER Think of what happens when your hand comes in contact with the ball. Why doesn't your hand just slip off the ball? Consider changes of direction and speed of the ball. Think ...

### physics

A 0.203 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.106 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction, and the speed of the...

### physics

A 0.210 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.109 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction, and the speed of the...

### physics

A 0.210 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.109 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction, and the speed of the...

### Physics

As it passes over Grand Bahama Island, the eye of a hurricane is moving in a direction 25 degrees north of west with a speed of 97 km/h. Three hours later, it shifts due north, and its speed slows to 79 km/h. How far from Grand Bahama is the eye 4.50 h after it passes over ...

### phsicsy

a liquid with density of 1.36*10^3 kg/m^3 through two horizontal sections of round tubing joined end to end. in first section, diameter of the tubing is 10cm and the flow speed is 230cm/s and the pressure is 1.3*10^5, the diameter is 6 cm a the cross sectional area in each ...

### physics

A solid, uniform disk of radius 0.250 m and mass 60.4 kg rolls down a ramp of length 4.60 m that makes an angle of 18.0° with the horizontal. The disk starts from rest from the top of the ramp. (a) Find the speed of the disk's center of mass when it reaches the bottom of the ...

### science

A running man has half the kinetic energy of that of a boy of half of his mass. The man speed up by 1 m/s so as to have same kinetic energy as that of boy . The original speed of man is ?

### physics

Responding to an alarm, a 100 kg, a fireman slides down a pole to the ground floor, 3.1 m below. The fireman starts at rest and lands with a speed of 3.8 m/s. Find the average force exerted on the fireman by the pole. Find the average force exerted on the fireman when the ...

### Physics

A long jumper takes of at an angle of 20 degrees and a speed of 11.0 m/sec. The max height achieved is 0.722 meters an the max length is 7.94 meters. At what angle and speed would the jumper have to take off to get the same max length, but twice the max height?

### physics

A 70.5kg football player is gliding across very smooth ice at 2.05m/s . He throws a 0.470kg football straight forward. What is the player's speed afterward if the ball is thrown at 14.5m/s relative to the ground? What is the player's speed afterward if the ball is thrown at 14...

### Physics

A 69.5kg football player is gliding across very smooth ice at 2.15m/s . He throws a 0.470kg football straight forward. What is the player's speed afterward if the ball is thrown at 16.0m/s relative to the ground? What is the player's speed afterward if the ball is thrown at 16...

### Physics

A 69.5kg football player is gliding across very smooth ice at 2.15m/s . He throws a 0.470kg football straight forward. A) What is the player's speed afterward if the ball is thrown at 16.0m/s relative to the ground? B) What is the player's speed afterward if the ball is thrown...

### Physics

A 69.5kg football player is gliding across very smooth ice at 2.15m/s . He throws a 0.470kg football straight forward. A) What is the player's speed afterward if the ball is thrown at 16.0m/s relative to the ground? B) What is the player's speed afterward if the ball is thrown...

### physics

The position of a 0.43 kg object attached to a spring is described by [x = (0.49 m) cos(1.25πt)] a) What is the amplitude of oscillations in m? b) What is in meters/second the maximum speed of the oscillating object? Answer in meters/seconds . c) Find in meters/second the...

### physics

The position of a 0.31 kg object attached to a spring is described by [x = (0.85 m) sin(2.37πt + 0.35)] a) What is the amplitude of oscillations in m? b) What is in meters/second the maximum speed of the oscillating object? Answer in meters/seconds . c) Find in meters/...

### Math

A plane is flying on a course with a vector of <250, 100>, where the 250 is the speed due north, and the 100 is the speed due east. The wind is blowing <25, 5> where the directions are also north and east, in the same order. How fast is the plane flying? All values...

### Meteorology/ Natural Hazards

Determine the epicenter of an earthquake from the seismographic data below: Time of wave arrival p wave s wave San Francisco 13:03:21 13:06:04 Dallas 12:04:34 12:05:59 New York City 12:24:54 12:29:50 P wave Speed 5.5 km/sec S wave Speed 3.5 km/sec where Z is time Zulu (GMT). -...

### Engineering

A 10.0 Kg block is released from point A in the figure below. The block travels along a smooth frictionless track. It makes a collision with stationary 10 kg ball. The ball moves forward with speed of 2 m/s. a) What is the speed of the block at point C? b) What is the velocity...

### Physics

An electron is accelerated from rest through a potential difference that has a magnitude of 2.70 × 107 V. The mass of the electron is 9.11 × 10-31 kg, and the negative charge of the electron has a magnitude of 1.60 × 10-19 C. (a) What is the relativistic kinetic energy (in ...

### physics

1)As a sound source moves away from a stationary observer, the number of waves will. decrease 2)How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than when the car is stationary? The speed of sound is 343 m/s. fs(v-vd/v-vs) 343(1/1-987...

### Waves-Science

I had a couple of questions on the topic of Waves-Sound and Light. 1. What is the source of all waves? *Vibration* 2. In one word, what is it that moves from source to receiver in a wave motion? *Energy* 3. Does the medium in which a wave travels move with the wave? *No* 4. ...

### physics

A swimmer, capable of swimming at a speed of 1.3 m/s in still water (i.e., the swimmer can swim with a speed of 1.3 m/s relative to the water), starts to swim directly across a 2.2-km-wide river. However, the current is 0.91 m/s, and it carries the swimmer downstream. (a) How ...

### physics

A swimmer, capable of swimming at a speed of 1.01 m/s in still water (i.e., the swimmer can swim with a speed of 1.01 m/s relative to the water), starts to swim directly across a 1.47-km-wide river. However, the current is 1.01 m/s, and it carries the swimmer downstream. (a) ...

### physics

A swimmer, capable of swimming at a speed of 1.81 m/s in still water (i.e., the swimmer can swim with a speed of 1.81 m/s relative to the water), starts to swim directly across a 2.29-km-wide river. However, the current is 1.31 m/s, and it carries the swimmer downstream. (a) ...

### physics

A swimmer, capable of swimming at a speed of 1.18 m/s in still water (i.e., the swimmer can swim with a speed of 1.18 m/s relative to the water), starts to swim directly across a 2.16-km-wide river. However, the current is 1.19 m/s, and it carries the swimmer downstream. (a) ...

### math

You commute 56 miles one way to work. The trip to work takes 10 minutes longer than the trip home. Your average speed on the trip home is 8 miles per hour faster. What is your average speed on the trip home?

### algebra

during the first part of a trip a canoeist travels 64 miles at a certain speed. the canoeist travels 11 miles on the second part of the trip at a 5 mph slower. the total time for the trip is 2 hrs. what speed on each part of the trip

### physics

An object is moving to the right at a speed of 4 m/s. Four forces(10N North, 10N South, 20N Left, 20N Right) are applied to the object at the same time. What will be the object's speed in m/s after the forces are applied?