Posted by ucieng on Saturday, February 6, 2010 at 1:32pm.
A single conservative force acts on a 5.00 kg particle. The equation Fx = (2x + 4) N describes this force, where x is in meters. As the particle moves along the x axis from x = 1.40 m to x = 5.80 m, calculate the following.
(a) the work done by this force on the particle
(b) the change in the potential energy of the system
(c) the kinetic energy the particle has at x = 5.80 m if its speed is 3.00 m/s at x = 1.40 m

Physics  drwls, Saturday, February 6, 2010 at 2:10pm
(a) The work done is the integral of F dx from 1.4 to 5.8.
If you do not know how to integrate, multiply the AVERAGE force by 4.4 m. The average force is in this case the value at x = 3.60 m
(b) The P.E. change is MINUS the work done in part (a). Just change the sign.
(c) To get the new value of kinetic energy, add the work done to (1/2) M V^2, where Vo = 3 m/s
(K.E.)final = (Work done)+ (M/2)Vo^2

Physics  ucieng, Saturday, February 6, 2010 at 2:33pm
Thanks so much for your help drwls!
Answer This Question
Related Questions
 physics  A single conservative force acts on a 5.00 kg particle. The equation ...
 Physics  A single conservative force F(x) acts on a 1.6 kg particle that moves ...
 Physics  A single conservative force Fx = (6.0x  12) (x is in m) acts on a ...
 General Physics  A force Fx acts on a particle. The force is related to the ...
 Algebrabase Physics  A single conservative force Fx= (6.0x12) N, (x is in m...
 physics  A single conservative force F = (7.0x  11)i N, where x is in meters, ...
 physics  A single conservative force F = (6.0x  11)i N, where x is in meters, ...
 Physics  As a particle moves along the x axis it is acted upon by a single ...
 physics  A 0.25 kg particle moves along an x axis according to x(t) =  10 + 3 ...
 physics  A particle moves along a straight path through displacement i = (2.2 m...
More Related Questions