# Physics

A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

1. 👍 0
2. 👎 0
3. 👁 33
asked by Ashley
1. F(t) = M * d^r/dt^2

If you want it as a function of r, use the inverse of the r(t) relation.

1. 👍 0
2. 👎 0
posted by drwls
2. What do you mean with the inverse?

1. 👍 0
2. 👎 0
posted by Ashley

## Similar Questions

1. ### Physics

A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

asked by Ashley on May 10, 2011
2. ### Physics

A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

asked by Ashley on May 10, 2011
3. ### Physics...help please!

An artillery shells is moving on a parabolic trayectory, when it explodes in midair. The shell chatters into a very large number of fragments. Which of the following statements is true? (Select all that apply.) A) A center of mass

asked by Celine on March 31, 2011
4. ### Physics...help please!

An artillery shells is moving on a parabolic trayectory, when it explodes in midair. The shell chatters into a very large number of fragments. Which of the following statements is true? (Select all that apply.) A) A center of mass

asked by Celine on April 1, 2011
5. ### Physics (please help!!!!)

An artillery shells is moving on a parabolic trayectory, when it explodes in midair. The shell chatters into a very large number of fragments. Which of the following statements is true? (Select all that apply.) A) A center of mass

asked by Celine on April 1, 2011
6. ### Physics

An artillery shells is moving on a parabolic trayectory, when it explodes in midair. The shell chatters into a very large number of fragments. Which of the following statements is true? (Select all that apply.) A) A center of mass

asked by Celine on April 1, 2011
7. ### physics

A force acts for 5 seconds on a body of mass 5.2 kg initially at rest. The force then ceases to act and the body moves with a speed of 3m/s find magnitude of force

asked by surabhi on August 13, 2018
8. ### physics

A constant force acts on a body mass 0.9 kg at rest for 10s.If the body moves a distance of 250m ,the magnitude of the force is

asked by shivani on May 8, 2017
9. ### Physics

A force of 9.0N is applied to a body at rest on a smooth horizontal surface. If the body has a mass of 18.0kg and it moves in the direction of the force, find the work done in. a. The first four second. b. The fourth second ?

asked by Simon on February 14, 2018
10. ### Physics

Q.1:When a force is applied to a body,several effects are possible.Which of the folloeing could NOT occur? a.The body speeds up. b.The body rotates. c.The mass of the body decreases. d.The body changes direction. e.The body

asked by Candy on April 14, 2007

More Similar Questions