Thursday

May 5, 2016
Number of results: 29,313

**physics**

A 5-g marble, released form rest, was allowed to roll on a ramp whose lower end is 25 cm from the floor. When it left the ramp, it behaved like a body in projectile motion. What was the horizontal velocity of this marble when it left the ramp? With what momentum did it leave ...
*March 6, 2011 by kik*

**Physics**

The wind blows a 0.50 kg Styrofoam box, initially at rest, across level ground and then up an incline where it comes to a rest. The box slides 6.0 m on level ground before sliding up the 20.0 Ovincline. If the effective coefficient of friction between the ground and the box ...
*August 9, 2012 by Chad*

**Physics**

2.A 3.65 kg mass is hung from a spring with a k constant of 535.0 N/m. How far does the spring stretch? 3.A 35 kg crate slides from rest down a ramp inclined at 29o onto a spring with a force constant of 4.5 x 102 N/m. The spring is compressed a distance of 0.45 m before the ...
*November 12, 2011 by holly*

**Physics**

Hello can someone please help me with this physics question and show the work so I can understand? A box at the top of a rough incline possesses 981 joules more gravitational potential energy than it does at the bottom. As the box slides to the bottom of the incline, 245 ...
*February 9, 2016 by Becky*

**Physics**

A 100 lb block of ice slides down an incline 5.0 ft long and 3.0 ft high. A worker pushes up on the ice parallel to the incline so that it slides down at constant speed. The coefficient of friction between the ice and incline is 0.10. Find the force exerted by the worker. (I'...
*March 11, 2015 by N*

**physics**

A skate boarder starts down the left side of a ramp with an initial speed of 5.4 m/s. Ignoring any non-conservative forces such as friction and air resistance, what would be the height h of the highest point reached by the skateboarder when she is launched from the right side ...
*April 3, 2012 by Anonymous*

**Geometry**

A wheelchair ramp has a rise from the ground of 1 gilt. The ramp has a length of fourteen feet. To the nearest angle the ramp makes the sidewalk
*February 21, 2011 by Sam*

**Physics**

a packing ccrate slides down an incline ramp at constant velocity. Thus we can deduce that a) a frictional force is acting on it b) a net downward force is acting on it c) it may be accelerating d) it is not acted on by appreciable gravitational force with a constant velocity ...
*October 10, 2007 by Tammy*

**physics **

A box slides across a frictionless floor with an initial speed v = 1.8 m/s. It encounters a rough region where? If instead the strip is only 0.413265306122449 m long, with what speed does the box leave the strip? vf =
*February 28, 2012 by Lisa *

**physics**

A 50 kg box hangs from a rope. What is the tension in the rope if a. The box is at rest? b. The box has vy = 5.0 m/s and is slowing down at 5.0 m/s2 ?
*September 29, 2014 by aithusa20*

**physics**

In the figure, block 1 of mass m1 slides from rest along a frictionless ramp from height h = 2.8 m and then collides with stationary block 2, which has mass m2 = 2m1. After the collision, block 2 slides into a region where the coefficient of kinetic friction μk is 0.3 and...
*November 13, 2013 by kristy*

**physics**

A crate of potatoes of mass 12.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.69 and μk = 0.43. Find the frictional force (magnitude and direction) on the crate if the crate is sliding down the ramp.
*September 19, 2013 by nadine*

**Physics**

In Fig. 4-11, a ball is launched with a velocity of 7.50 m/s, at an angle of 50° to the horizontal. The launch point is at the base of a ramp of horizontal length d1 = 4.00 m and height d2 = 3.60 m. A plateau is located at the top of the ramp. What is the magnitude of its ...
*October 25, 2010 by Robert*

**geometry**

A wheelchair ramp has a rise from the ground of 1 foot. The ramp has a length of 14 feet. To the nearest degree, find the angle the ramp makes with the sidewalk.
*March 1, 2011 by Keegan*

**Physics**

1. A 38kg object is traveling down the ramp and experiences a frictional force of 180N. Calculate the angle of incline and the friction coefficient between the two surfaces. Answers: μ(mu)=0.55 Θ=28.9 degrees But please show work and all equations/variables used.
*June 23, 2011 by Tina*

**Physics**

A motorcycle stuntman must jump from a ramp to a platform. The platform is located 15M away and is 2M higher then the tip of the ramp. The ramp is at a 35Degree angle. At what velocity must he travel as he leaves the ramp in order to reach the platform. Express in KM/h
*July 30, 2012 by Alex*

**physics**

In Figure block 1 of mass m1 slides from rest along a frictionless ramp from height h = 3.10 m and then collides with stationary block 2, which has mass m2 = 5.00m1. After the collision, block 2 slides into a region where the coefficient of kinetic friction μk is 0.550 ...
*February 27, 2008 by gia*

**College Physic**

can someone help me with this question? Thank you! You have taken a summer job at a warehouse and have designed a method to help get heavy packages up a 15º ramp. In your system a package is attached to a rope, which runs parallel to the ramp and over a pulley at the top of ...
*September 30, 2012 by Monet Nguyen*

**Physics**

a child slides down a slide with 26 degrees inclined and at the bottom her speed is 1/4 of what it would have been frictionless. Calculate the coefficient of kinetic fiction between the slide and the child?
*September 24, 2014 by Anonymous*

**Physics**

292 kg motorcycle is accelerating up a ramp that is 30 degrees above the horizontal. Propulsion force pushing the motorcycle up ramp is 3150 N. Air resistance produces a force of 250 N that opposes the motion. Find that motorcycle's acceleration.
*October 5, 2009 by Jenn*

**Physics 101**

A 25 kg box rests on an inclined plane which is 30o to the horizontal. The coefficient of sliding friction between the box and the plane is 0.30. Determine the acceleration of the box down the plane. (9.8 m/s2)
*April 2, 2015 by Roman*

**Physics**

When a block slides a certain distance down an incline the work done by gravity is 300 J. What is the work done by gravity if this block slides the same distance up the incline? a) 300 J b) zero c) -300 J d) It cannot be determined without knowing the distance the block ...
*March 25, 2007 by Tammy*

**AP Physics**

A 239-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 29.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.800, and the log has an acceleration of 0.900 m/...
*November 13, 2008 by Corey*

**PHYSICS**

A 287-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.810, and the log has an acceleration of 0.900 m/...
*September 30, 2010 by STEPHANIE*

**Physics**

A 255 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.900 m/...
*November 7, 2011 by Milica Bobic*

**Physics**

A 260-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.800 m/...
*February 21, 2012 by Natasha*

**Physics**

A 260-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.800 m/...
*February 21, 2012 by Natasha*

**physics**

A 190-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 32.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.876, and the log has an acceleration of 0.671 m...
*March 11, 2012 by Natasha*

**physics**

A 208-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 34.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.830, and the log has an acceleration of 0.800 m/...
*September 27, 2012 by Anonymous*

**Physics**

A 201-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.810, and the log has an acceleration of 0.700 m/...
*October 31, 2012 by Anonymous*

**MATH**

boating The inclined ramp of a boat launch is 8 meters longer than the rise of the ramp. The run is 7 meters longer than the rise. How long are the three sides of the ramp? let the the rise be x m then the run is x+7 m , and the ramp (the hypotenuse) is x+8 m then x^2 + (x+7)^...
*September 22, 2008 by jennifer*

**physics**

Guy has to get a piano onto a 2.4 m high platform. He can use a 3.0 m long frictionless ramp or a 4.0 m long frictionless ramp. Which ramp will Guy use if he wants to do the least amount of work? Either ramp as the work done is same in both cases. The shorter ramp will require...
*February 10, 2015 by mathew*

**Physics**

Derive a function that gives the final speed of the cart as a function of the masses, ramp angle and distance up the ramp that the cart moves. Use conservation of energy to do this-no kinematics or Newton's Laws. I have 3 trials ,, 3 angles and 3 masses ( cart moving up the ...
*July 22, 2011 by AfterLife*

**physics**

The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the ...
*November 11, 2012 by Donald*

**Physics**

The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the ...
*November 12, 2012 by D*

**Physics 1**

The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the ...
*November 17, 2012 by Donald*

**physics**

im stuck on the assignment: is the potential energy of a marble at the top of a ramp the same as the kinetic energy of the marble at the bottom of the ramp. I dont know the co-efficient of friction of wood but our teacher has told us keywords, they are: PREDICTIONS, measure ...
*March 27, 2008 by sinead*

**physics**

A 2 kg metal plate slides down a 11-meter high slope. At the bottom its speed is 7.5 m/s. To the nearest Joule, what was the magnitude of the work done by friction?If the slope in the above problem is 22 degrees, what is the coefficient of friction?
*April 21, 2012 by Anonymous*

**physics**

A 0.87 kg block is shot horizontally from a spring, as in the example above, and travels 0.497 m up a long a frictionless ramp before coming to rest and sliding back down. If the ramp makes an angle of 45.0° with respect to the horizontal, and the spring originally was ...
*October 27, 2009 by Anonymous*

**physics **

A 0.8 kg block is shot horizontally from a spring, as in the example above, and travels 0.545 m up a long a frictionless ramp before coming to rest and sliding back down. If the ramp makes an angle of 45.0° with respect to the horizontal, and the spring originally was ...
*May 27, 2011 by sarah*

**Physics**

A 45kg block slides down an incline that is angled at 41 degrees. If the coefficient of kinetic friction between the block and the incline is 0.45 what is the block's acceleration?
*February 19, 2014 by Taylor*

**physics**

A skier leaves the starting gate at the top of a ski ramp with an initial speed of 4.00 m/s (Figure 6-41). The starting position is 120 m higher than the end of the ramp, which is 3.00 m above the snow. Find the final speed of the skier if he lands 145 m down the 20.0° slope. ...
*October 31, 2014 by nic*

**physics**

A skier leaves the starting gate at the top of a ski ramp with an initial speed of 4.00 m/s (Figure 6-41). The starting position is 120 m higher than the end of the ramp, which is 3.00 m above the snow. Find the final speed of the skier if he lands 145 m down the 20.0° slope. ...
*October 31, 2014 by chris*

**Physics**

At the State Fair you see people trying to win a prize at a game booth. They are sliding a metal disk shaped like a puck up a wooden ramp so that it stops in a marked zone near the top of the ramp before sliding back down. You estimate that you can slide the 'puck' at v=3m/s...
*April 3, 2015 by jake*

**physics**

A box is being lowered down a wall at constant speed by a girl, as shown. Her hand is pushing on the edge of the box with 50 N of force at a 45◦ angle with respect to the horizontal. The box weighs 40 N. Find the coefficient of kinetic friction between the box and the ...
*April 5, 2013 by /*

**physics**

A box is being lowered down a wall at constant speed by a girl, as shown. Her hand is pushing on the edge of the box with 50 N of force at a 45◦ angle with respect to the horizontal. The box weighs 40 N. Find the coefficient of kinetic friction between the box and the ...
*April 5, 2013 by /*

**mechanics 12**

A 1.8 kg breadbox on a frictionless incline of angle θ = 37° is connected, by a cord that runs over a pulley, to a light spring of spring constant k = 120 N/m, as shown in the figure below. The box is released from rest when the spring is unstretched. Assume that the ...
*November 2, 2012 by kunal *

**physics**

Two boxes with different masses M1 = 1.1 kg and M2 = 3.0 kg are tied together on a frictionless ramp surface which makes an angle θ = 27° with the horizontal (see the figure below). What is the tension in the rope connecting the two boxes? What is the tension in the rope ...
*February 17, 2011 by melad *

**PHYSICSSS**

Two boxes with different masses M1 = 1.8 kg and M2 = 2.6 kg are tied together on a frictionless ramp surface which makes an angle θ = 21° with the horizontal (see the figure below). What is the tension in the rope connecting the two boxes? N What is the tension in the ...
*February 11, 2012 by Anonymous*

**PHYSICSSS**

Two boxes with different masses M1 = 1.8 kg and M2 = 2.6 kg are tied together on a frictionless ramp surface which makes an angle θ = 21° with the horizontal (see the figure below). What is the tension in the rope connecting the two boxes? N What is the tension in the ...
*February 12, 2012 by Anonymous*

**Physics, Energy **

The block is released from rest on the frictionless ramp. It compresses the spring by 20cm before momentarily coming to rest. What is the initial distance d? k=200N/m m=3kg angle=300 degrees The picture looks somewhat like this : (box is here) / / (spring is here)/(angle)_____
*March 27, 2012 by bobby*

**Physics Energy **

The block is released from rest on the frictionless ramp. It compresses the spring by 20cm before momentarily coming to rest. What is the initial distance d? k=200N/m m=3kg angle=300 degrees The diagrm looks something like this: (box is here) / / distance d / (spring) /(angle)...
*March 27, 2012 by bobby*

**physics 1**

A 8.00-kg block of ice, released from rest at the top of a 1.44-m-long frictionless ramp, slides downhill, reaching a speed of 2.54m/s at the bottom.
*November 9, 2014 by Anas*

**Physics**

In a water park, people walk a distance of 20 meters up an inclined ramp before getting on a water slide. If the spot from where they start sliding down is located 7 meters above the water’s surface, calculate the angle of the ramp with the horizontal.
*February 22, 2012 by Lauren01*

**Physics**

In a water park, people walk a distance of 20 meters up an inclined ramp before getting on a water slide. If the spot from where they start sliding down is located 7 meters above the water’s surface, calculate the angle of the ramp with the horizontal
*March 21, 2016 by Adrian Watkins*

**Physics**

Block 1 of mass m1 slides from rest along a frictionless ramp from height h and then collides with stationary block 2, which has mass m2 = 3m1. After the collision, block 2 slides into a region where the coefficient of kinetic friction is μk and comes to a stop in ...
*November 1, 2011 by Isabel*

**physics**

Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 26.0. If Santa slides 7.00 before reaching the edge, what is his speed as he leaves the roof?
*October 6, 2009 by Angela*

**physics**

Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00 before reaching the edge, what is his speed as he leaves the roof?
*January 28, 2010 by k-Paul*

**Physics**

An electric motor is used to pull a 125 kg box across a floor using a long cable. the tension in the cable is 350N and the box accelerates at 1.2m/s^2[forward] for 5.0s. The cable breaks and the box slows down and stops. How far does the box travel from the moment the cable ...
*October 29, 2012 by Lala*

**Physics**

An electric motor is used to pull a 125 kg box across a floor using a long cable. the tension in the cable is 350N and the box accelerates at 1.2m/s^2[forward] for 5.0s. The cable breaks and the box slows down and stops. How far does the box travel from the moment the cable ...
*October 29, 2012 by Lala*

**Math OMG Please help**

A wooden access ramp is being built to reach a platform that sits 45 inches above the floor. The ramp drops 3 inches for every 31-inch run. -Write a linear equation that relates the height y of the ramp above the floor to the horizontal distance x from the platform. y=? -Find ...
*October 2, 2015 by Anonymous*

**Physics**

Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00m before reaching the edge, what is his speed as he leaves the roof?
*January 28, 2010 by k-Paul*

**media**

I have to make a powerpoint presentation between 6-9 slides including notes. In regards to making people recycle but I just do not know how to make so many slides for just recycling because there is not much information. Can someone help me with ideas or how to break it down ...
*September 24, 2007 by student A*

**Physics**

A brick of mass 1.0 kg slides down an ice roof inclined at 30 degrees with respect to the horizantal. If the brick starts from rest, how fast is it moving when it reaches the edge of the roof 0.90s later? Ignore friction
*October 23, 2010 by Lisa*

**College Physics**

A box with a mass of 3.5 kg is resting on a horizontal frictionless incline plane which is inclined at 28 degrees. Another force is applied at an angle of 13 degrees above the direction parallel to the incline. What does the magnitude of this force need to be, in Newtons, such...
*October 1, 2014 by Suzy*

**physics**

A toy sled with a mass of 1.0 kg is sliding down a ramp that makes an angle of 25° with the ground. The coefficient of kinetic friction between the toy sled and the ramp is 0.25. 4. In a coordinate system where the x-axis is parallel to the ramp and the y-axis is perpendicular...
*October 19, 2010 by Jeremy *

**Physics**

1. Tyler pulls a box full of baby ferrets across the floor by means of a rope that is tied to the box. The rope makes an angle of 41 degrees with the horizontal and tyler pulls on the rope with a force of 60N. a)What is the horizontal component of the force that tyler is ...
*June 21, 2011 by Anonymous*

**physics**

You are driving down the road and hit a bump which causes your fishing tackle box to bounce out of the bed of your pickup. The box decelerates at a rate of 3 m/s¶ and skids 24 meters before coming to a stop. How fast were you traveling when the box fell out?
*February 3, 2014 by isabella*

**Physics**

A box is sent up a frictionless inclined (34.2 degrees) plane at an initial speed 3.9 m/s. (a) How much time, in seconds, does it take for the box to stop? (b) How far did the box travel up the plane before it came to a stop?
*April 21, 2016 by Melissa*

**physics **

A 220-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 26.6° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.863, and the log has an acceleration of 0.856 m/...
*October 1, 2014 by S*

**PHYSICS!!**

A person thought it would be a good idea to change a tire on the side of a hill. The tire has a width of W = 0.30 m and a radius of R = 0.40 m. The inside of the wheel is empty, but the wheel is solid from a radius of R/2 to R with uniform density. The density of the material ...
*April 4, 2016 by Vanessa*

**Physics**

A 10 kg sled slides down a hill with an incline of 30 degrees above the horizontal. Because of friction, it maintains a constant speed. For every meter that is traveled, how much energy (in joules) does the sled lose? I say 98 sin(30) Joules?
*March 11, 2009 by Harold*

**Physics**

Here is my question: A 200 N sphere 0.20 m\m in radius rolls, without slipping, 6.0 m down a ramp that is inclined 28 degrees with the horizontal. What is the angular speed of the sphere at the bottom of the hill if it starts from rest? Do this with energy considerations: ...
*December 3, 2006 by Jen*

**Math/physics**

This is my last problem. Please help! A motorcycle rider starts out on top of a ramp 10 m high and then rides down and jumps the motorcycle when he comes to the end of the ramp (like evil knivel). The rider is at the peak of his jump at 5 m. How fast is the motorcycle going ...
*January 16, 2015 by Jeff*

**PHYSÝCS I**

A crate of oranges slides down an inclined plane without friction. If it is released from rest and reaches a speed of 4.883 m/s after sliding a distance of 2.01 m, what is the angle of inclination of the plane with respect to the horizontal? Please note: Give your answer in ...
*March 1, 2012 by ADRÝAANA*

**physics**

A crate of oranges slides down an inclined plane without friction. If it is released from rest and reaches a speed of 4.883 m/s after sliding a distance of 2.01 m, what is the angle of inclination of the plane with respect to the horizontal? Please note: Give your answer in ...
*March 2, 2012 by lissa*

**Science-Enr. Phys.**

A box of books weighing 325 N moves at a constant velocity across the floor when the box is pushed with a force of 425 N exerted downward at an angle of 35.2 degrees below the horizontal. Fink Mu,k between the box and the floor. There have been several of this type of question...
*February 25, 2007 by Sara*

**physics**

The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform acrobatic maneuvers. In the women's competition, the end of ...
*October 24, 2010 by myx*

**Physics**

The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform acrobatic maneuvers. In the women's competition, the end of ...
*July 9, 2011 by Kristi*

**Physics**

The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform acrobatic maneuvers. In the women's competition, the end of ...
*June 27, 2012 by Emily*

**Physics**

The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform acrobatic maneuvers. In the women's competition, the end of ...
*September 18, 2012 by Donald*

**Physics **

1. If a 30kg object experiences a normal force of 210N when traveling down a ramp, what is the angle of incline? Also, calculate the force of friction and the coefficient of friction. Answers: μ(mu)=0.98 Θ=44.5 degrees But please show work and all equations/variables...
*June 22, 2011 by Tina*

**physics**

A 16 kg block slides down a frictionless slope which is at angle θ = 20◦. Starting from rest,the time to slide down is t = 1.88 s.The acceleration of gravity is 9.8 m/s2.
*October 26, 2011 by Anonymous*

**Physics**

A box is sliding down a frictionless plane inclined at an angle of 30° width the horizontal. What is the acceleration of the box?
*September 10, 2014 by Precious*

**Physics**

2. Tyler pulls a box full of baby ferrets across the floor by means of a rope that is tied to the box. The rope makes an angle of 41 degrees with the horizontal and tyler pulls on the rope with a force of 60N. a)What is the horizontal component of the force that tyler is ...
*June 21, 2011 by Molly*

**Physics**

A 4.6-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.6 m in 4.9 s. Find the coefficient of kinetic friction between the block and plane.
*October 12, 2011 by Kayla*

**Physics**

A 4.3-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.1 m in 5.1 s. Find the coefficient of kinetic friction between the block and plane.
*October 12, 2011 by Jen*

**math**

A horizontal clothesline is tied between 2 poles, 12 meters apart. When a mass of 5 kilograms is tied to the middle of the clothesline, it sags a distance of 1 meters. What is the magnitude of the tension on the ends of the clothesline? A constant force moves an object along a...
*September 15, 2008 by Dennis*

**physics**

a box of mass 10kg is at rest on a horizontal plane.a force of 20N is applied to it at 30 degrees to the plane.assuming there no frictional force between the box and the plane,calculate the acceleration of the box.
*March 11, 2016 by Misheck*

**Physics**

Ok the problem I'm doing has two parts I know how to do part a and got the right answer I think... I do not know how to do part b Here's the problem A student driver wants to make his car jump over 8 cars parked side by side below a horizontal ramp (a)With what minimum speed ...
*July 5, 2009 by Physics*

**physics**

A skier leaves the top of a ski ramp at an angle of 25 degrees with an initial velocity of 10 m/s. The ramp is 60 m high, neglecting air resistance determine: a. The time it takes the sk ier to reach the ground. b. How far away from the base does he land? c. How high above the...
*October 1, 2015 by T*

**Science - physics**

Imagine you need to deliver a piano over three steps. A longer ramp translates into less force necessary to raise the piano's height than a shorter ramp would require. Calculate the percentage smaller a force would be required using an 2.8m long ramp compared to a 0.9m ramp?
*September 3, 2013 by Miranda*

**Physics**

A box of mass 1kg is placed on a table and is connected to a hanging mass m by a string strung over a pulley. If the coefficient of kinetic friction between the box and the table is .3 and the box slides at a constant speed of .5m/s what is the weight of the hanging mass? ...
*November 14, 2007 by Andrea*

**Physics**

A 250N force is applied at an angle of 32 degrees above the horizontal to a 96kg box causing it to slide along a floor. The coefficient of friction between the box and the floor is 0.18. What is the magnitude of the net force on the box? The answer is 67N, I'm just not sure ...
*March 10, 2013 by Julia*

**physics help**

I know that the answer to this problem is (0.2237232293) and to begin it by making a force body diagram, but I need help setting up the equation(s). Thanks! A box rest on an incline making a 30 angle with the horizontal. It is found that a parallel force to the incline of at ...
*October 3, 2014 by jessica*

**physics**

Now the ramp is tilted downwards and the sphere leaves the ramp at 1.5 m/s. The bottom of the ramp is 0.90 m above the floor. Calculate the range of the sphere.
*October 13, 2014 by Jaylen*

**physics**

A car accelerates at a constant rate of 3.42 m/s2 from rest at the beginning of a freeway entrance ramp. At the end of the ramp the car has a speed of 25.49 m/s. How long is the ramp?
*October 3, 2012 by dr. burgess*

**physical science**

A mover uses a ramp to push a stereo into the moving van. The ramp is 3 meters long and 1.5 meters high. What is the ima of this ramp?
*April 26, 2011 by Liam *

**math**

Your school is organizing a carnival. You are building a ramp for a game. The ramp will be 8 feet long with a total rise of 5 feet. Find the angle of elevation of the ramp.
*February 10, 2016 by Juan*

**physics**

A 5.4 kg block slides down an inclined plane that makes an angle of 38 with the horizontal. Starting from rest, the block slides a distance of 2.5 m in 5.3 s. The acceleration of gravity is 9.81 m/s2 . Find the coefficient of kinetic friction be- tween the block and plane.
*March 14, 2011 by Sara*