Search: PHYSICS~Acceleration

Number of results: 96,229

physics
acceleration = net force/mass acceleration = 1/.8(4/5) acceleration = 1.25 m/s^2 hope this helps!!!!
Monday, October 11, 2010 at 11:36am by Anonymous Awesome Guy

Physics
An object is thrown vertically upward. a) What are its velocity and acceleration when it reaches its highest altitude? b) What is its acceleration on its way downward half a meter above the ground? My ans: a) velocity is zero and acceleration is 9.8 m/s^2 b) i am not sure but ...
Sunday, October 18, 2009 at 4:01pm by Nikita

Physics
A Force 5N gives a mass M an acceleration of 8m/s-2 and m an acceleration of 24m/s-2. What is the acceleration if both the masses are tied together?
Sunday, July 29, 2012 at 2:24am by Anupam Khatiwara

physics
tension= totalmass*(acceleration+ g) solve for acceleration now, given acceleration, scale reads mg+ma where m is the mass of the woman.
Wednesday, November 10, 2010 at 9:29pm by bobpursley

Physics but algebra problem
Let a = the acceleration for 89N Let m = the bowling balls mass. Let g = acceleration of gravity. So, 2a is the acceleration for 99N. Set up the equation that shows the 99N acceleration is 2 times the 89N acceleration: 2(89N - mg)/m = (99N - mg)/m Solve for m.
Wednesday, September 23, 2009 at 6:29pm by Quidditch

physics
The constant force provides the uniform acceleration. Since this acceleration is normal to the velocity, it is centripetal acceleration. The block will move along the curvilinear trajectory (circle).
Monday, May 21, 2012 at 3:33pm by Elena

Physics - gravitational acceleration
How does and Atwood machine make it easier to determine g - the acceleration due to gravity, rather than by just measuring the acceleration of a free-falling object?
Wednesday, August 11, 2010 at 5:57am by Shaila

Physics
a. Since W=mass x acceleration , when accelerating upward the acceleration due to gravity and the acceleration of the elevator add up. So, a=(9.8+1.7)=11.5m/s^2, so weight = 97kg x 11.5 m/s^2. b. at constant speed their is no acceleration except for earths gravity which means ...
Monday, February 18, 2008 at 4:46pm by Spencer

Physics
Compute the magnitude of the tangential acceleration, the radial acceleration, and the resultant acceleration of a point on its rim after it has turned through 38.2^\circ. Enter your answers separated with commas.
Tuesday, February 7, 2012 at 7:09pm by Anonymous

Physics
Net Force = Mass * Acceleration Set up a direction convention. Since you already declared +x and -x: Force (+x) + Force (-x) = Mass * Acceleration 30N - 35N = 5kg * Acceleration -5N/5kg = Acceleration -1m/s^2 = Acceleration Now depending on which direction is negative (left or...
Saturday, January 7, 2012 at 12:49am by Anonymous

Physics
Top fuel drag racer can reach the maximum speed of 304 mph at the end of the 1/4-mile (402 m) racetrack. (a) Assuming that the acceleration is constant during the race, calculate the average value of the acceleration of the top fuel car. (b) What is the ratio of that ...
Thursday, September 1, 2011 at 10:53pm by Logan

Physics
You have two components of acceleration: a(centripetal) = v^2/r, which is the centripetal acceleration directed inward towards the center of the circle. dtheta/dt = omega = 2*a*t v = omega*r The second component of acceleration is the tangential acceleration, a(tangential) = (...
Sunday, November 11, 2012 at 5:53am by Jennifer

Physics
Which of the following could be units of acceleration? A) mi/h B) m/s C) mph D) m/s/s I know acceleration is the velocity/Time so I think they are all units of acceleration. Is this right?
Wednesday, September 21, 2011 at 11:33am by Crystal

College Physics
You need to provide units for radious and acceleration. Numbers alone are not enough to define the problem. When the magnitude of the total acceleration is 3.30 whatevers, the centripetal acceleration is presumably sqrt[3.3^2 - 1.3^2). Use that fact and R to compute V. That ...
Saturday, November 28, 2009 at 1:09am by drwls

Physics
if an obejct has an horizontal acceleration of -0.51 m/s squared and vertical acceleration of -7.683 m/s squared, what is the resultant acceleration?
Thursday, October 15, 2009 at 10:49am by Jack

PHYSICS!!!
I need to see your work or thinking to critique it. On c, tangential component is wr. Net linear acceleration will be the vector addition of tangential acceleration and centripetal acceleration.
Wednesday, March 5, 2008 at 8:05pm by bobpursley

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 = ...
Tuesday, November 14, 2006 at 6:24am by miss sixty

Physics
The initial acceleration is F/M = 150 m/s^2. An acceleration change TO 6.0 m/s^2 is not an increase in acceleration. Are you sure is did not increase BY 6.0 m/s^2, to 156 m/s^2?
Friday, October 8, 2010 at 2:30am by drwls

physics
A laboratory centrifuge on earth makes n rpm (rev/min) and produces an acceleration of 7.00 g at its outer end. What is the acceleration (in g's, i.e., acceleration divided by g) at a point halfway out to the end?
Saturday, November 27, 2010 at 1:05pm by jessica

Physics
Could you please check my answers and help me out with the last two? Thanxs! 1.Carefully define the following words: distance, displacement, speed, velocity, acceleration. Does it make a difference if we designate distance as "x" or "d"? (I dont understand ...
Sunday, September 2, 2007 at 10:54pm by Jules

Physics
To find the velocity and acceleration vectors for uniform circular motion and to recognize that this acceleration is the centripetal acceleration. Suppose that a particle's position is given by the following expression: r(t) = Rcos(omega*t)i + Rsin(omega*t)j Velocity ...
Friday, November 13, 2009 at 8:14pm by Becky

Physics
Newton's second law states that if an object has zero acceleration, the net force acting on it is zero. My question is if you have an object at constant acceleration moving downward is there a net force being applied to it? Does constant acceleration= zero net force? Yes, ...
Tuesday, April 3, 2007 at 1:34am by Mary

PHYSICS
A fan blade is rotating with a constant angular acceleration of +13.7 rad/s2. At what point on the blade, as measured from the axis of rotation, does the magnitude of the tangential acceleration equal that of the acceleration due to gravity?
Thursday, October 28, 2010 at 4:31pm by JOHN

physics
A car engine accelerates at a constant rate from 170 rpm to 3050 rpm in 7 seconds. I have found that at t=0, the angular velocity (omega)=17.8 rad/s, the angular acceleration (alpha)= 43.1 rad/s^2, the tangential acceleration = 7.76 m/s^2, and the centripetal acceleration is ...
Monday, April 27, 2009 at 1:44am by Elle

Physics
<A ball is thrown vertically upward. What are its velocity and acceleration when it reaches its maximum altitude? At the maximum altitude the ball stops so what are its (instanteous) velocity and acceleration? What is its acceleration just before it hits the ground? &...
Wednesday, November 10, 2010 at 7:24am by Dr Russ

Physics(Please help)
A fan blade is rotating with a constant angular acceleration of +12.4 rad/s2. At what point on the blade, as measured from the axis of rotation, does the magnitude of the tangential acceleration equal that of the acceleration due to gravity? I do not know how to start this.
Tuesday, June 5, 2012 at 3:34pm by Hannah

physics
Start by calculating the acceleration of the plane as it moves from rest to take-off. It gets up to 80 m/s in 35 seconds, so its acceleration is 80/35 m/s^2. Now you can just plug in the formula for distance travelled under acceleration = ut + 0.5at^2. Initial velocity u is ...
Tuesday, September 29, 2009 at 1:10am by jim

physics
(a) What is the tangential acceleration of a bug on the rim of a 6.0 in. diameter disk if the disk moves from rest to an angular speed of 79 rev/min in 5.0 s? m/s2 (b) When the disk is at its final speed, what is the tangential velocity of the bug? m/s (c) One second after the...
Saturday, March 27, 2010 at 5:52pm by Kelsey

physics
The wording here is a bit suspicious. Maximum acceleration occurs when the amplitude is maximum, and it is acceleration=-(2PI*f)^2*maxAmplitude so when you know the maxAmplitude, you can figure acceleration, which is of course force=mass*acceleration, and the force on the ...
Monday, November 26, 2012 at 6:37pm by bobpursley

physics
Yes, I neglected to notice that V is increasing in (B) When the acceleration starts, V is the original 4.5 m/s value, and you introduce a new tangential acceleration of 1.45 m/s^2. The centripetal acceleration starts at V^2/R = 1.51 m's^2 The magnitude of the acceleration ...
Thursday, December 2, 2010 at 11:34pm by drwls

physics
still saying it's wrong |f| = N 3.23 NO HELP: The frictional force provides the torque needed to give an angular acceleration. Therefore, first find the angular acceleration, then apply the rotational equivalent of Newton's 2nd Law (torque = I*a). HELP: Since the ...
Friday, April 9, 2010 at 12:01am by rufy

AP Physics B
can you check my reasoning 1. The problem statement, all variables and given/known data ok well then... we did a lab were you have a hanging mass attached to a stirng that went through a straw and was attached to a rubber stopper. The lab was to find the mass of the rubber ...
Sunday, September 13, 2009 at 8:42pm by AP Physics B

PHYSICS~Acceleration
Two students get in an elevator on the ground floor and ride the elevator up to the fifth floor? Describe what happens to their velocity and acceleration during the trip. Would their velocity be increasing? There would be upward acceleration at first and then there would be ...
Monday, November 22, 2010 at 7:06pm by Anabelle

physics
Use F = ma It is one of the most important formulas in physics and engineering With mass (m) in kg and acceleration (a) in m/s^2, the computed force F will be in newtons. Your units for acceleration should be m/s^2, not m/s. Perhaps someone made a typing error.
Tuesday, February 8, 2011 at 4:57am by drwls

physics
No. first, the acceleration due to gravity on Earth is not 10m/s^2, anywhere. It is very close to 9.81 m/s^2. This is the acceleration due to gravity, it does not matter what the velocity is. Acceleration is constant.
Saturday, February 4, 2012 at 3:02pm by bobpursley

Physics
The horizonal component of force is 60*cos41 b) horizontalforce=mass*horizontial acceleration solve for horizonal acceleration c) distance=vi*time+1/2 acceleration*time^2
Tuesday, June 21, 2011 at 1:20am by bobpursley

Physics
Im not sure, but I believe that they will not. The larger the radius, the smaller the acceleration. Centripetal acceleration = V^2/r, so the runners in the outer lanes will have a smaller centripetal acceleration.
Monday, January 21, 2013 at 10:32pm by Devron

Physics
at the top, net acceleration=centacc-9.8 at the bottom, add them to get net acceleration centripetal acceleration=v^2/r r, v given. distanceAround/time=v solve for time.
Monday, June 8, 2009 at 12:49pm by bobpursley

Physics
well,the component of weight down the slide is mg*sinTheta Force= mass*acceleration mg*sinTheta=m*acceleration solve for acceleration
Monday, September 12, 2011 at 6:39pm by bobpursley

physics
First, find the acceleration: 7.3 = 14.4 - a*t Substitute 3 seconds into the above equation to find the acceleration a. This acceleration is due to the force of friction = ckf*m*g where ckf is the coefficient of kinetic friction, m is the mass of the puck, and g is the ...
Friday, October 5, 2012 at 12:17am by Jennifer

physics
examples of: 1) acceleration against the direction of motion 2) acceleration in direction of motion 3)acceleration is uniform 4)acceleration is non-uniform
Saturday, June 23, 2012 at 8:13am by JOSHI

physics
Do you want the radius of the car or the path that it is on? The centripetal acceleration of the car would be perpendicular to the velocity. If the total acceleration is 51 degrees N of W, there must also be a tangential acceleration also. The centripetal acceleration would be...
Friday, November 19, 2010 at 12:02am by drwls

physics
Landing with a speed of 87.7 m/s, and traveling due south, a jet comes to rest in 939 m. Assuming the jet slows with constant acceleration, find the magnitude and direction of its acceleration. Magnitude of acceleration
Wednesday, September 5, 2012 at 7:49pm by martha

physics
Rocket-powered sleds are used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 444 m/s in 1.80 s and can be brought to a stop again in 2.15 s. (a) Calculate the acceleration of the sled when starting, and compare it to the ...
Tuesday, September 21, 2010 at 10:21pm by Anonymous

physics
linear acceleration=1.71/min^2, I certainly would change that to rad/sec^2 , time radius tangential acceleration=angularacceleration*radius. Since angular acceleration is constant, it does not matter what angular velocity is.
Monday, September 27, 2010 at 7:26pm by bobpursley

Physics
An airplane is flying in a horizontal circle at a speed of 104 m/s. The 73.0 kg pilot does not want the centripetal acceleration to exceed 6.98 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is 9.81 m/s2. Answer ...
Tuesday, March 5, 2013 at 8:02pm by Anonymous

Physics
In a physics experiment with an inclined air track, what do you predict about the following: a) Position graph b) Velocity c) Acceleration My ans: For a i predicted there would be a curve and i didn't know why b) velocity will decrease with time but why? c) acceleration is...
Tuesday, October 27, 2009 at 8:28pm by Nikita

physics
A car accelerates at a constant rate from zero to 25.9 m/s in 7.6 seconds and then slows to 15.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the entire time?What was the acceleration during the first acceleration period?
Wednesday, May 22, 2013 at 4:29pm by giggles24

physics
What do you mean by 6 "gm" acceleration? Grams are not used to measure acceleration. Do you mean 6 g? Or 6 m/s^2 In either case, the effective weight is F = m a where a is the acceleration rate of the rocket. If the astronaut is close to Earth, a gravitational weight...
Saturday, November 26, 2011 at 12:34am by drwls

Physics 1 - Mechanics
Since the force is GmM/r^2, it varies directly with the mass of the planet, and inversely with the radius-squared. 4*mass = 4 * acceleration 6*radius = 1/36 * acceleration Then just plug in your equations of motion with the new acceleration value.
Friday, October 14, 2011 at 12:47pm by Steve

Physics
A centripetal acceleration (horizontal) of 9.04 m/s^2, combined with the existing (vertical) Mars gravity acceleration of 3.8 m/s^2, will reasult in a resultant acceleration of 9.81 m/s^2. Require that V^2/R = 9.04 m/s^2 V = 134 m/s = 300 mph It does not seem practical. You&#...
Sunday, July 31, 2011 at 10:15pm by drwls

physics
Current velocity = (time)*(acceleration) + initial velocity 12 = (0.96)*acceleration + 0 acceleration = 12.5 m/s2
Wednesday, February 9, 2011 at 2:38pm by Nadir

physics
A racing car reaches a speed of 40 m/s. At this instant, it begins a uniform negative acceleration, using a parachute and a braking system, and comes to rest 5.0 s later. (a) Determine the acceleration of the car. (b) How far does the car travel after acceleration starts?
Friday, September 7, 2012 at 12:21am by Tamera

PHYSICS I NEED MAJOR HELP PLEEEAAAAAASSSSSSSSSEEEE
If velocity is positive and increasing then... displacement is.... acceleration is.... If displacement is positive and increasing then...... acceleration is...... velocity is..... If acceleration is positive and increasing then......... displacement is....... velocity is...
Wednesday, December 13, 2006 at 11:46pm by anonymous

Physics
An airplane is ﬂying in a horizontal circle at a speed of 104 m/s. The 88.0 kg pilot does not want the centripetal acceleration to exceed 6.15 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is 9.81m/s2...
Friday, February 8, 2013 at 5:03pm by Dave

Physics
You don't need the velocity to answer the question. You need the acceleration at a particular time. This is not a constant-acceleration problem. The acceleration is the second derivative of the x(t) function, a(t) = x''(t) = 7.00 - 15 t Multiply the value of a at 3...
Tuesday, September 22, 2009 at 1:55am by drwls

Physics
The tension on a string from which a 5.00kg object is suspended in an elevator is T=(44.0j)N. What is the acceleration of the elevator? Specify the acceleration in unit vector notation. T - Mg = M a with positive force upward. a = T/m - g = 8.8 - 9.8 = -1.0 m/s^2 Multiply that...
Tuesday, February 20, 2007 at 4:11am by Sabrina

Physics
A car is traveling around a horizontal circular track with radius r = 190.0 m at a constant speed v = 22.0 m/s as shown. The angle èA = 15.0° above the x axis, and the angle èB = 63.0° below the x axis. 1) What is the magnitude of the car’s ...
Saturday, January 19, 2013 at 7:08pm by Anonymous

physics
a jet plane flying at 550 m/s makes a curve. The radius of the circle in which the plane is flying is 9.0 X 10^3 m. What centripetal acceleration does the plane experience? Express this acceleration relative to g, the acceleration due to gravity.
Tuesday, November 1, 2011 at 10:08pm by Dee

Physics/Math
At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (9.00i + 8.00j) m/s^2. It moves at constant speed. At time t2 = 3.00s (3/4 of a revolution later), it's acceleration is (8.00i - 9.00j) m/s^2. Find the radius of the path taken by ...
Sunday, February 18, 2007 at 7:51pm by COFFEE

AP Physics
You have a force of 4mg pulling on the apparatus. You know the torque, given r. Torque= I*angular acceleration. You know I (you have each m, and L) Solve for angularacceleration. Now that you have angular acceleration, solve for tangential acceleration,given r. Isn't that ...
Monday, February 18, 2008 at 12:41am by bobpursley

Physics
An airplane is flying in a horizontal circle at a speed of 106 m/s. The 81.0 kg pilot does not want the centripetal acceleration to exceed 6.16 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is 9.81 m/s2. Answer ...
Tuesday, November 13, 2012 at 7:39pm by Kyla

physics
Eq= force= mass*acceleration solve for the acceleration upward. NOTE: the u above is initial velocity, in the direction of deflection, u is zero. a is acceleration s is distance. now back to the problem ************************* I would like to know the measurements of the ...
Friday, September 16, 2011 at 12:25pm by bobpursley

college physics
You should know by now that you have to include dimensions with your radius and acceleration numbers. If the tangential acceleration is always 0.300 (m/s^2?), the centripetal accleration (which is perpendicular to tangential) will be 1.98 m/s^2 when the total acceleration is 2...
Wednesday, November 24, 2010 at 9:32pm by drwls

Physics
cent acceleration= w^2 r w is constant, so acceleration is proportional to r. centacceleration(3)=wtip(3/6.7)
Saturday, February 18, 2012 at 6:17pm by bobpursley

physics
displacement= 1/2 angulare acceleration*t^2 solve fodr angular acceleration
Monday, March 14, 2011 at 5:48pm by bobpursley

Physics
Half the acceleration is 16. I got 32 m/s^2 for the planet's acceleration.
Sunday, September 27, 2009 at 1:14pm by JOHN

physics
15 N is mass *acceleration. In this case, acceleration= gravity.
Wednesday, January 23, 2013 at 12:46pm by Devron

Physics
force= mass*acceleration where acceleration =20/.01 m/s^2
Monday, November 21, 2011 at 5:46pm by bobpursley

physics
Vf=Vi+acceleration*time solve for acceleration.
Sunday, September 5, 2010 at 8:49pm by bobpursley

Physics
constant acceleration a d = (1/2) a t^2 by the way the angular acceleration alpha = a/R
Saturday, August 7, 2010 at 2:46pm by Damon

physics
Find the acceleration (deltaVeloicty/time) Force=m*acceleration
Monday, March 9, 2009 at 6:51pm by bobpursley

physics
F=ma find acceleration. then, vfinal= acceleration*time
Thursday, January 3, 2008 at 4:31pm by bobpursley

Physics
You are going to need the ferris wheel radius R to compute an actual number for the acceleration. The angular velocity is w = 10*pi/60 s = 0.524 rad/s The acceleration is R*w^2, always toward the center of the wheel. It is centripetal. There is no tangential acceleration if ...
Monday, January 14, 2013 at 5:19pm by drwls

physics
displacment=1/2 acceleration*t^2 displacement=4.82*2PI radians solve for acceleration.
Sunday, October 7, 2012 at 7:51pm by bobpursley

physics
a comet experiences a uniforn acceleration from 60m/s to 183m/s what is the rate of acceleration?
Monday, January 2, 2012 at 7:34pm by ricky

Physics
force= mass*acceleration What is acceleration? vf^2=Vi^2+2ad solve for a.
Tuesday, November 1, 2011 at 2:44pm by bobpursley

Physics
constant speed means acceleration is zero. force=mass*acceleration.
Thursday, September 1, 2011 at 8:21pm by bobpursley

Physics
Use the equation F = m a That is the same as a = F/m a is the acceleration. The mass (m) should be in kg to get the acceleration in m/s^2.
Tuesday, June 21, 2011 at 6:39pm by drwls

physics
centripetal acceleration=gravitational acceleration v^2/r=3/5 g solve for V. You need to know the radius of Mars.
Wednesday, February 16, 2011 at 9:11pm by bobpursley

physics
Can you clarify the units for the acceleration of 3.3? Note: the acceleration of a 737 is in the range of 1.6-1.9 m/s².
Monday, September 20, 2010 at 3:53pm by MathMate

physics
An object with constant acceleration has velocity v = 12 m/s when it is at x = 6 m and v = 17 m/s when it is at x = 10 m. What is its acceleration?
Monday, September 13, 2010 at 11:11pm by katharine

Physics - gravitational acceleration
The acceleration is much lower, making it easier to measure.
Wednesday, August 11, 2010 at 5:57am by Damon

physics
acceleration= w^2 r= (1.3*2PI rad/sec)^2 1.1m tension= masshammer*acceleration
Saturday, March 20, 2010 at 4:20pm by bobpursley

Physics
if it is constant velocity, acceleration is zero. If it is slowing down, acceleration is negative...
Tuesday, September 11, 2007 at 6:52pm by bobpursley

Physics
1) would dropping an object higher than it's usual point change it's acceleration? 2) would throwing an object upward change it's acceleration? 3)does the mass of an object affect it's acceleration? 4) how does altitude affect the value of g? what other factors...
Monday, September 26, 2011 at 9:47pm by WOLLY

physics
(1) The resultant force is the mass times the acceleration. (2) The acceleration is zero. Therefore: __________________
Friday, February 22, 2013 at 3:03am by drwls

physics
acceleration is 9.8 m/s^2 (!), Acceleration shows how the speed changed during the 1 second of accelerated motion
Thursday, May 3, 2012 at 3:58pm by Elena

physics
What is a tire's angular acceleration if the tangential acceleration at a radius of 0.15 m is 9.4 x 10-2 m/s2?
Monday, March 19, 2012 at 10:32am by Anonymous

physics
a comet experiences uniform acceleration from 60 m/s to 183 m/s in 10.0 s. what is its rate of acceleration ?
Wednesday, January 11, 2012 at 8:13am by Anonymous

PHYSICS
Can a car move around a racetrack so that it has tangential acceleration byt no centripetal acceleration?
Sunday, January 24, 2010 at 11:58am by hailey

physics
Net force= mass*acceleration 300-95=ma solve for acceleration
Tuesday, November 25, 2008 at 1:48pm by bobpursley

Physics
Set the centripetal acceleration to the acceleration of gravity v^2/r = g
Sunday, November 11, 2012 at 7:35pm by Jennifer

Physics
It's asking for the direction of acceleration. I calculated the acceleration already.
Sunday, October 31, 2010 at 8:32pm by Bala

physics
vf^2=2*acceleration*distance solve for acceleration
Thursday, October 15, 2009 at 7:12pm by bobpursley

physics
Total acceleration consists of two perpendicular components. The centripetal acceleration is V^2/R. The tangential acceration is given to be 1.0 m/s^2. When the total acceleration is 2.0, the centripetal acceleration is sqrt(2^2 - 1^2) = sqrt3 = 1.732 m/s^2 Solve V^2/R = 1.732...
Tuesday, September 22, 2009 at 11:04pm by drwls

Physics
ω = 10.44rad/s , ε = 51.57rad/s^2 R =D/2. Normal (centripetal) acceleration a(n) = ω^2•R. Tangential acceleration a(τ) = ε•R. Resultant linear acceleration a =sqrt(a(n)^2 + a(τ)^2).
Wednesday, April 18, 2012 at 8:39am by Elena

physics
acceleration= 4PI^2 r/T a) acceleration is halved, right? 2) if T is halved, then acceleration is doubled 3) If speed doubles, and period doubles, what happened to r? v=2PI r/T TV=2PI r so r quadrupled a= v^2/r so a stays the same.
Monday, October 8, 2007 at 6:46pm by bobpursley

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