Friday

March 6, 2015

March 6, 2015

Posted by **Jeff** on Sunday, October 25, 2009 at 10:22pm.

(a) What is the velocity of the body at x = 4.0 m?

(b) At what positive value of x will the body have a velocity of 5.0 m/s?

I solved for work by using the changes in kinetic energy and got -75 J but don't see how that helps whatsoever.

- College Physics -
**Nick M**, Sunday, October 25, 2009 at 10:38pmF = ma. They gave you Force and mass, solve for acceleration. You can use the values of X they give you, the velocities, and the acceleration to solve for Vf and the X value where v = 5.0

- College Physics -
**Jeff**, Sunday, October 25, 2009 at 10:42pmYes I know of using that equation but the acceleration is not constant so I can't just plug in into an equation with a different x value.

- College Physics -
**Anonymous**, Saturday, February 27, 2010 at 12:05amtruth.

**Answer this Question**

**Related Questions**

Physics - The only force acting on a 4.7 kg body as it moves along the positive ...

physics - The only force acting on a 3.0 kg body as it moves along the positive ...

PHYSICS - The only force acting on a 2.3 kg body as it moves along the positive ...

physics - If the 1 kg standard body has an acceleration of 2.00 m/s2 at 20.0° to...

physics - A box of mass 65 kg hangs motionless from two ropes, as shown in the ...

Physics - A force of 38 newtons is acting on an object making an angle of 65º ...

Physics - 1)Three positive particles of charges 9µC are located at the corners ...

Physics/Math - A 2.8 kg body is at rest on a frictionless horizontal air track ...

Physics - A two dimensional object placed in the xy plane has three forces ...

Physics - A 2.9 kg body is at rest on a frictionless horizontal air track when a...