Wednesday
December 7, 2016

Homework Help: Science: Physics

Recent Homework Questions About Physics

Physics
An arrow is shot at 28.0 degrees above the horizontal. Its velocity is 52 m/s, and it hits the target. (a) What is the maximum height the arrow will attain? (b) The target is at the height from which the arrow was shot. How far away was it?
Tuesday, October 4, 2016 by Brendan

Physics
An airplane traveling 1004 m above the ocean at 130 km/h is going to drop a box of supplies to shipwrecked victims below. (a) How many seconds before the plane is directly overhead should the box be dropped? (b) What is the horizontal distance between the plane and the victims...
Tuesday, October 4, 2016 by Brendan

Physics
The density of an object is 1500kgm-3, the mass is 10000g find the volume
Tuesday, October 4, 2016 by Jordaine

physics
On the horizontal surface of a truck a block of mass 1kg is placed and truck is moving with acceleration 5m/sec then the frictional force on the block will be?
Tuesday, October 4, 2016 by aadithya

Physics
A horizontal force of 150 N is used to push a 40.5-kg packing crate a distance of 5.05 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following. (a) the work done by the 150-N force (b) the coefficient of kinetic friction between the ...
Monday, October 3, 2016 by Bella

Physics
At the starting gun a runner accelerates from the rest at 1.5 m/s squared for 2.2 seconds. What is the runner's speed 2.0 seconds after she starts running?
Monday, October 3, 2016 by Jannet

Physics
A boy throws a ball straight up into the air so that it leaves his hand at 11 m/s. 1) If the ball has mass 0.15 kg and the boy's arm moved through 1.5 m as he threw the ball, then what average force did he exert on the ball? Please show it step by step along with the ...
Monday, October 3, 2016 by Anonymous

physics
a wooden box weighing 286N is pushed across the floor by a workman who exerts a horizontal force of 143N. If the force of friction between the box and the floor is 28N, what is the acceleration (in meters per second) of the box?
Monday, October 3, 2016 by kassy

Physics
An object with a weight of 150 N hangs from the ceiling as shown in the figure. 1) Find the tension in each string. q1 = 60 degree and q2 = 45 degree Please show it step by step along with the equation to use
Monday, October 3, 2016 by Anonymous

Physics
A small bug is placed between two masses (m1>m2) on a frictionless table. A horizontal force F is applied to either m1 or to m2, as shown. 1) In which case does the bug have a better chance of survival? HINT: Find the force of contact between the blocks in each case. Please...
Monday, October 3, 2016 by Anonymous

Physics
An 80 kg man stands in an elevator. What force does the floor of the elevator exert on the man if a) the elevator is stationary? b) the elevator accelerates upward at 2 m/s2? c) the elevator rises with constant velocity 4 m/s? d) while rising, the elevator decelerates at 1.5 m...
Monday, October 3, 2016 by Anonymous

Physics
A fuzzy die (m = 0.2 kg) hangs from the ceiling of a car. When the car accelerates forward along a horizontal road, the die swings backward so the the string supporting it makes an angle of 4 degree with the vertical. What is the acceleration of the car? HINT: We're not ...
Monday, October 3, 2016 by Anonymous

physics
how large a fore (in newtons) is needed to accelerate a 5 metric-ton vehicle from rest to a speed of 10 km/hr in 4 s?
Monday, October 3, 2016 by kassy

physics
A 2.0 kg object moving with a constant velocity of 5.0 m/s, is acted upon by a force of 14n in the direction of the motion for 5.0s. what is the velocity (in meters /second^2) of the object at the end of this time?
Monday, October 3, 2016 by kassy

physics
A flatbed truck is carrying a 2610kg crate of heavy machinery. if the coefficient of static friction between the crate and the bed of the truck is 0.530, what is the maximum rate(in meters/second^2) that the driver can decelerate when coming to a stop in order to avoid cruhing...
Monday, October 3, 2016 by kassy

physics
What two facts did Newton need to be able to calculate the acceleration of the Moon? A) the distance to the Moon and the diameter of the Moon B) the time it takes the Moon to make one revolution and the distance from the Earth to the sun C) the diameter of the Moon and the ...
Monday, October 3, 2016 by Sue

physics
What is the acceleration (in meters/second^2) of free falling 74kg sky diver, if the air resistance exerts a force of 233n?
Monday, October 3, 2016 by kassy

physics
A 0.110 kg baseball,traveling at 37.0 m/s, strikes the catchers mitt, which recoils 13.0cm in bringing the ball to rest. What was the average force(in newtons) applied be the ball to the mitt?
Monday, October 3, 2016 by kassy

Physics
A baseball of a mass 0.15 kg is thrown by a pitcher with a speed 20m/s. The bat is in contact with the ball for 0.01 second and gives it a speed of 30m/s in a direction straight towards the picther.find the value of the force and the impluse?
Monday, October 3, 2016 by Kylie

PHYSICS
tWO PEOPLE PLAY TUG OF WAR. tHE 97 KG PERSON ON THE LIFT PULLS WITH 1,176 n, AND THE 76 KG PERSON ON THE RIGHT PULLS WITH 839 n. aSSUME THAT NEITHER PERSON RELEASES THEIR GRIP ON THE ROPE WITH EITHER HAND AT ANY TIME, ASSUME THAT THE ROPE IS ALWAYS TAUT, AND ASSUME THAT THE ...
Monday, October 3, 2016 by LESTER

PHYSICS
A 100 kg box on the right and a 50 kg box on the lift are tied together by a horizontal cable. The 100 kg box is acted upon by an external force of 500 N to the right. The fritional force exerted by the floor on the 100 kg box is 30 N and the froctional force exerted by the ...
Monday, October 3, 2016 by LESTER

PHYSICS
a 107 KG BOX ON THE RIGHT AND A 43 KG BOX ON THE LEFT ARE TIED TOGETHER BY A HORIZONTAL CABLE. tHE 107 KG BOX IS ACTED UPON BY AN EXTERNAL FORCE OF 598 n TO THE RIGHT. THE FRICTIONAL FORCE EXERTED BY THE FLOOR ON THE 107 KG BOX IS 30 n AND THE FRICTIONAL FORCE EXERTED BY THE ...
Monday, October 3, 2016 by LESTER

PHYSICS
A 100 kg box on the right and a 50 kg box on the left are tied together by a horizontal cable. The 100 kg box is acted upon by an external force of 500 N to the right. The frictional force exerted by the floor on the 100 kg box is 30 N and the frictional force exerted by the ...
Monday, October 3, 2016 by LESTER

Physics
A hydroxide ion (OH−) in a glass of water has an average speed of about 600 m/s. Determine the magnitude of the electrical force between the hydroxide ion (charge −e) and a positive ion (charge +e) that is 1.0 × 10−8 m away (about the separation of 30 ...
Monday, October 3, 2016 by Kyle

Physics
A train travels due east at a velocity of 85.5 km/hr. A passenger walks from the front of the train to the back at a velocity of 3.7 km/hr. What is the velocity of the passenger to an observer who is seated on a train going due west at a velocity of 64.7 km/hr? What I've ...
Monday, October 3, 2016 by George

physics
a bullet is fired horizontally with a velocity of 40 m/s from a height if 50m. how far it will fall to the ground
Monday, October 3, 2016 by laraib

Physics
Two blocks of masses 11 kg and 8.0 kg are connected together by a light red string and rest on a frictionless level surface. Attached to the 8-kg mass is a light blue string, which a person uses to pull both blocks horizontally. If the two-block system accelerates at 0.5 m/s2...
Monday, October 3, 2016 by Jessica

Physics
A kangaroo carries her 0.49kg baby in her pouch as she bounds across the ground. As she pushes off the ground, she is accelerating upward at 30 m/s2. What is the apparent weight of her baby at this instant?
Monday, October 3, 2016 by Brittany!

physics
The speed of a train is reduced from 80knhr-1 to 40kmhr-1 in a distance of 500m on applying the brake.how much further will the train travel before coming,how long will it take to bring the train to rest after the application of the brakes?
Monday, October 3, 2016 by tope

Physics
A car drives east at 40km/h and then turns back and drives west back to the strating point at 70 km/h, what is the avarge speed of the car?
Monday, October 3, 2016 by need help

physics
if someone walks 1.5 km west then 2.5 km 30 degrees south of east then 1.5 km 40 degrees north of east. Starting at the same point, what would be the angle to get someone straight from the starting point to where the other person ended??
Monday, October 3, 2016 by Joe

Physics
A car starting from rest is uniformly accelerated so that it's velocity in 5 seconds is 36 km/h . It travels at this velocity for 5 seconds, and then a brake is applied to bring it to rest in the next 5 seconds. Find the total distance travelled
Monday, October 3, 2016 by Claire

Physics
I think it is D) but I'm not quite sure. Thanks in advance! Right after the ball is thrown at angle of 45 deg, the acceleration is a)g b)sin(45) * g c)cos(45) * g d)tan(45) * g
Monday, October 3, 2016 by Timothy

Physics(check my answer please!!)
Hello, could you guys let me know if this looks right? Thanks in advance. A ball is fired at a speed of 8 m/s at 20 degrees above the horizontal from the top of a 5m high wall. a) what is the total velocity at the maximum height? b) how far from the launcher will the ball hit ...
Monday, October 3, 2016 by Timothy

physics
A plane 65 m above the ground is flying directly toward a target at 50 m/s . Part A At what distance from the target should the pilot drop the weight?
Monday, October 3, 2016 by brittney

Physics
A car drives north on highway at 40km/h and then turns back and drives south back to the strating point at 60 km/h, what is the avarge speed of the car?
Sunday, October 2, 2016 by Mohammad

Physics
An all-terrain vehicle of 4000 kg mass moves up a 13o slope at a constant velocity of 6.00 m/s. The rate of change of gravitational potential energy with time is
Sunday, October 2, 2016 by Gabriel

Physics
You're driving parallel to train tracks at 40.0 km/h when a train passes you, going a steady 105 km/h. A track crossing is up ahead, so you begin to speed up at 6.50 m/s2. How far do you drive before you pass the train?
Sunday, October 2, 2016 by Grace

Physics
The passengers in a roller coaster car feel 1.60 times heavier than their true weight as the car goes through a dip with a 24.0 m radius of curvature. What is the car's speed at the bottom of the dip? Which equation do I use? V= 2(pi)r/t = 2(pi)rtf = wr
Sunday, October 2, 2016 by Bex

physics
A stone is dropped from a 100m bridge. How long does it take the rock to reach the ground?
Sunday, October 2, 2016 by jack

physics
In these figures, we see a boy named Billy riding a carnival ride called the Rotor and the free-body diagram for the forces acting on him. What must be the magnitudes of the vectors (f)wall,Billy and (W)Earth,Billy if Billy remains at the same height along the wall? 1) The ...
Sunday, October 2, 2016 by Betty

Physics
A 300kg bobsled starts down an icy slope inclined at 12 degrees. There is some friction between the bobsled and the slope. If the hill is 200m long, how long does it take for the sled to reach the bottom?
Sunday, October 2, 2016 by Anon

Physics
A 300kg bobsled starts down an icy slope inclined at 12 degrees. There is some friction between the bobsled and the slope. Write the equations of motion in the two directions where the x axis is along the hillside.
Sunday, October 2, 2016 by Anon

physics-sir damon help
An paris aeroplane left Benin airport at 1:00pm to fly to Yola airport 600km away on a bearing of 110• at an airspeed of 220km/hr. On that particular day, the meteorologists reported that there existed a steady wind of 35km/hr from a bearing of 40•. What is the ...
Sunday, October 2, 2016 by pjy

Physics
A car heads due west on Interstate 80 going 63.0 km/hr for 2.1 hours. The car then turns and heads exactly northwest on Interstate 42 going 53 km/hr for 3.3 hours. What is the resultant displacement of the car? I've done some work on it and I have a good idea. I found the ...
Sunday, October 2, 2016 by George

Physics
a ball is shot upwards from ground level at a vertical speed of 40 m/s. a. What is the vertical speed of the ball just as it hits the ground? Explain. b. How long is the ball in the air? Explain. c. Draw a height vs time graph of the situation. Include a point at each 1-second...
Sunday, October 2, 2016 by Amy

physics
What happens to centripetal force when speed decreases, in the special case that the object continues moving in a circle of the same radius? A) The radius cannot stay the same. B) The force also decreases. C) The force increases. D) Speed does not affect centripetal force. E) ...
Sunday, October 2, 2016 by Katelyn

Physics 12
A 62 kg rock climber is attached to the rope that is allowing him to hang horizontally with his feet against the wall. The tension in the rope is 7.1x10^2 N,and the rope makes an angle of 32 degrees with the horizontal.Dtermine the force exerted by the wall on the climber'...
Sunday, October 2, 2016 by Jon snow

physics
A basketball rolls to the right with a velocity of 4 meters per second. It is pushed up and accelerated up for 2 seconds with an acceleration of 4 meters per second . Then for 1 second it is pushed and accelerated down with an acceleration of 12 meters per second . What is its...
Sunday, October 2, 2016 by Mo

Physics
A car passes the starting line traveling 20.5 mph. It accelerates constantly at 7.96 mi/hr-s. After 7.67 seconds, how far has the car travelled? Be sure to give your answer in miles with the correct number of significant digits. The answer should be in the scientific notation ...
Sunday, October 2, 2016 by HI

Physics
Describe the steps necessary to convert a parabolic decreasing curve to a liner graph. That's is one with the relationship between two variables give a straight line.
Sunday, October 2, 2016 by Stuck

Physics
A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. 1) What force will the smaller magnet exert on the larger magnet? Please show step by step including the right equations for this problem
Sunday, October 2, 2016 by Anonymous

Physics
What net force F will accelerate a 0.5 kg mass at 4 m/s2? If this same net force were applied to a 20 kg mass, what would its acceleration be? Please show me step by step including the right equations
Sunday, October 2, 2016 by Anonymous

AP physics
According to the equation a=bc what type of relationship (direct or inverse) exerts between the quantities A and C? Draw a qualitive graph to describe the relation between A and C. Assumeing B is constante.
Sunday, October 2, 2016 by Help

Physics
Two blocks, each of mass m = 3.35 kg are hung from the ceiling of an elevator as in the figure below. (a) If the elevator moves with an upward acceleration a with arrow of magnitude 1.7 m/s2, find the tensions T1 and T2 in the upper and lower strings. T1 = N T2 = N (b) If the ...
Sunday, October 2, 2016 by Jack

Physics
An object of mass m1 = 4.10 kg placed on a frictionless, horizontal table is connected to a string that passes over a pulley and then is fastened to a hanging object of mass m2 = 6.70 kg as shown in the figure -> Find the magnitude of the acceleration of the objects. (m/s2...
Sunday, October 2, 2016 by Jack

Physics
A block slides down a frictionless plane having an inclination of θ = 13.2°. The block starts from rest at the top, and the length of the incline is 1.70 m. -> Find the acceleration of the block. (m/s2 down the incline) -> Find its speed when it reaches the ...
Sunday, October 2, 2016 by Jack

Physics
An electron of mass 9.11 10-31 kg has an initial speed of 2.60 105 m/s. It travels in a straight line, and its speed increases to 6.00 105 m/s in a distance of 4.40 cm. Assume its acceleration is constant. (a) Determine the magnitude of the force exerted on the electron. ...N...
Sunday, October 2, 2016 by Jack

Physics
Maya follows a maze by going: 3 m north, 2 m west, 1 m south, 1 m west, 2 m north, 6 m east, and 2 m north. What is her final displacement in a north/south direction.
Sunday, October 2, 2016 by Lily

Physics
I don't need somone to fully answer this questions, but I need help as to where to get started. Occasionally a severe leg break requires traction to help the bones heal properly. While in traction, the leg is held stationary in the air and is under tension by a series of ...
Sunday, October 2, 2016 by Jana

Physics
Determine the relative density of a regular shaped object
Sunday, October 2, 2016 by Angela

Physics
When an object is moving in a circle, but it is not held to the center by a tangible connection like a string, what provides the centripetal force? 1) some force such as friction or gravity. 2) the tendency for the object to move in a straight line. 3) centrifugal force. 4) ...
Sunday, October 2, 2016 by Elizabeth

Physics
A car heads due west on Interstate 80 going 63.0 km/hr for 2.1 hours. The car then turns and heads exactly northwest on Interstate 42 going 53 km/hr for 3.3 hours. What is the resultant displacement of the car?
Sunday, October 2, 2016 by George

physics: mechanics and heat
Two strings support a small 8kg body. find the tension in the strings if they both make 30° with the vertical.
Sunday, October 2, 2016 by dda

physics: mechanics and heat
The following three forces act on a particle: 30N at 30° with the x- axis, 50 N at 135° with the x-axis, and 20N along the negative x-axis. Find the fourth force on the particle which will keep it in equilibrium. Draw it's free-body diagram.
Sunday, October 2, 2016 by dada

Physics
Two trains approach each other at a railroad crossing. Train 1 travels 80 km/h and Train 2 travels 50 km/h. They both sound their horns before passing each other, emitting sound waves at 300 Hz. The speed of sound is 343 m/s. At what frequencies does a person waiting at the ...
Sunday, October 2, 2016 by Nicholas

physics
top-bottom whole drag of 5m ice,density0.9kg\cc.by a rope mug of water bring from whole.rope length?
Sunday, October 2, 2016 by jayee

Physics
A book of 10 newton is placed on the table. The force exerted by the surface of the table on the book will be?
Saturday, October 1, 2016 by Har!@#$%^&

physics
When an object is moving in a circle, but it is not held to the center by a tangible connection like a string, what provides the centripetal force? 1) some force such as friction or gravity. 2) the tendency for the object to move in a straight line. 3) centrifugal force. 4) ...
Saturday, October 1, 2016 by Elizabeth

Physics
A long, heavy rope hangs straight down from a high balcony on an apartment building. The lower end of the rope hangs about 1.0 m above the ground. If you grab onto the lower end and waggle it back and forth with constant frequency f, a wave travels up the rope. What would ...
Saturday, October 1, 2016 by Ck

Physics
What happens to centripetal force when speed decreases, in the special case that the object continues moving in a circle of the same radius? A) The radius cannot stay the same. B) The force also decreases. C) The force increases. D) Speed does not affect centripetal force. E) ...
Saturday, October 1, 2016 by Tom

Physics
Why does "banking" or (tilting) a turning road create centripetal force? A) Because banking the corner keeps car from going too fast. B) Because the angle of the roadway creates a centripetal force. C) Because the angle of the roadway helps cars counteract friction. ...
Saturday, October 1, 2016 by Tom

physics
A high-speed drill rotating ccw at 2300 rpm comes to a halt in 2.9 s .
Saturday, October 1, 2016 by Anonymous

Physics
A ball is raised to a height of 30.0m above the ground. What would its velocity be when it has fallen to a height of 15.0m above the ground. (You must solve this as a conservation of energy problem, and can do it in one step!) Any help would be appreciated..
Saturday, October 1, 2016 by Ben

Physics
Pool players often pride themselves on their ability to impart a large speed to a pool ball. In the sport of billiards, event organizers often remove one of the rails on a pool table to allow players to measure the speed of their break shots (the opening shot of a game in ...
Saturday, October 1, 2016 by Morgan

Physics
A soldier is tasked with measuring the muzzle velocity of a new rifle. Knowing the principles of projectile motion, he decides to perform a simple experiment at the indoor firing range. The soldier hangs a target a distance of d = 104 m from the end of the barrel. The rifle is...
Saturday, October 1, 2016 by Morgan

Physics
A wave on a string is described by: y=(3.6cm)sin(2.7x−3.1t +0.97) where x is in meters, and t is in seconds, phase constant is in radians Consider a particle at x= 0.50m. After t = 0, how much time will pass before that particle first reaches its maximum transverse speed...
Saturday, October 1, 2016 by Cp

Physics
Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed you will experience a constant execrations. Suppose you drive through an entrance ramp at a modest acceleration 3.0 m/s^2. What will the acceleration be if you ...
Saturday, October 1, 2016 by Anonymous

Physics
A 24.5-kg child is 11.6 m from an 85.5-kg adult. Where is the center of mass of this system? Take the origin at the position of the child.
Saturday, October 1, 2016 by Plase help soon

Physics
When an item has been launched into orbit, what happens? 1: It continues to fall but its path never reaches the ground. 2: Centripetal force from Earth's gravity keeps it from being accelerated toward Earth. 3: It no longer falls because the weakness of Earth's gravity...
Saturday, October 1, 2016 by Beth

Physics
An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. How deep is the water directly below the vessel if the time delay of the echo to the ocean floor and back is 7 s? Answer in units of m. plz help and explain
Saturday, October 1, 2016 by Jac

Physics
Please help..... When something is thrown over a large distance (on earth ) what new factor comes into play? 1- The decrease in gravity over long distance 2- The increase in gravity over long distance 3- The tendency of thrown objects to fall to the ground 4- The difference ...
Saturday, October 1, 2016 by Jessica

Physics
Two ants race across a table 76 cm long. One travels at 5.2 cm/s and the other at 2 cm/s. When the first one crosses the finish line, how far behind is the second one? Answer in units of cm. Can you teach me how to do this plz?
Saturday, October 1, 2016 by Jenn

Physics
A vector changes if 1. its direction changes. 2. Any of these 3. its magnitude changes. 4. its direction and magnitude both change. 5. None of these i know it is not 3 or 4. Please explain it to me
Saturday, October 1, 2016 by JIna

Physics
A 51kg person on a merry-go-round is traveling in a circle with a radius of 2 m at a speed of 6 m/s A) What acceleration does the person experience? B) What is the net horizontal force? C) How does it compare with the person's weight?
Saturday, October 1, 2016 by Sue

Physics
The motion of a wave traveling along a stretched string is described by the equation: y(x,t)=(2.4cm)sin(5.7x−14.0t) What is the minimum time it takes for a particle on the string to move from y= -2.4 cm to y = 2.4 cm? Can someone help me give some hints on how to do the ...
Saturday, October 1, 2016 by Pn

Physics
A biker traveling at 6m/s accelerates for 3 seconds at a rate of 3.4m/s2. How far did the biker travel while accelerating?
Friday, September 30, 2016 by Gus

physics
The propeller of a plane rotate clockwise at 26900 rpm. What is the angular acceleration (in rad/s2) of the propeller if it takes 8.00 s to come to a standstill?
Friday, September 30, 2016 by Anonymous

Physics
ool players often pride themselves on their ability to impart a large speed to a pool ball. In the sport of billiards, event organizers often remove one of the rails on a pool table to allow players to measure the speed of their break shots (the opening shot of a game in which...
Friday, September 30, 2016 by Morgan

Physics
A net force is applied to an object, the same net force is then applied to a second object with 6.2 times the mass of the first then the acceleration of the second object will be how many times the acceleration of the first object?
Friday, September 30, 2016 by Mary

Physics
If a 350 kg object is moving with constant velocity 22 m/s due east then what is the magnitude of the net force acting on the object?
Friday, September 30, 2016 by Mary

Gyroscopes/Physics
Which of the following best describes the motion of a working gyroscope moving through space? a. the gyroscope both translates and rotates b. the gyroscope rotates, abut does not translate c. the gyroscope neither translates nor rotates d. the gyroscopes translates, but does ...
Friday, September 30, 2016 by MM

Physics
A skateboarder starts up a 1.0-m-high, 30∘ ramp at a speed of 7.2 m/s . The skateboard wheels roll without friction. At the top, she leaves the ramp and sails through the air. How far from the end of the ramp does the skateboarder touch down? Express your answer with the...
Friday, September 30, 2016 by Abby

Physics
A bicycle and rider travel along a road. Which of the following statements is true? a. Only the rider undergoes a translation. b. Only the bicycle undergoes translation. c. Neither the bicycle nor the rider undergoes a translation. D. The bicycle and rider undergo translation
Friday, September 30, 2016 by MM

Physics
A container of mass 0.3 kg slides along the ice with a speed of 4 m/s when it reaches a rough section where the coefficient of kinetic friction is 0.8. How long will it take the puck to stop sliding?
Friday, September 30, 2016 by Shawn

physics
Earth of mass 6×10^24 kg is in motion around the sun with a linear velocity of magnitude 30 km/s. a) Determine the magnitude of the linear momentum of the center of mass of Earth. b) Is this linear momentum conseved?
Friday, September 30, 2016 by angy

Physics
A rocket is fired vertically with an acceleration of 16m/s^2. After time T, the rocket's engine runs out of fuel and it begins to fall freely. The maximum height of the rocket is 940m, what is the minimum value of T?
Friday, September 30, 2016 by Liam

Physics
Two blocks are connected over a massless, frictionless pulley. The mass of block 2 is 8.00 kg, and the coefficient of kinetic friction between block 2 and the incline is 0.250. The angle θ of the incline is 28.0°. Block 2 slides down the incline at constant speed. ...
Friday, September 30, 2016 by Aron

Physics
A 1200 kg car rounds a curve of radius 71 m banked at an angle of 11°. What is the magnitude of the friction force required for the car to travel at 82 km/h? My physics optional extra work: This would be helpful so I can compare the solutions here as I do the work by myself.
Friday, September 30, 2016 by Ryan

Physics
A 0.79 kg ball is connected by means of two ideal strings to a vertical, rotating rod. The strings are tied to the rod and are taut. The upper string is 29.0 cm long and has a tension of 29.7 N, and it makes an angle θ2 = 64.0° with the rod, while the lower string ...
Friday, September 30, 2016 by Ryan

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