Which of the Following Is a Conservative Force? (All Refer
Which of the following is a conservative force? (All refer to a car on a slope. )
A)The force you exert on the car pushing it uphill.
B)The force exerted by rain drops falling on the car.
C)The frictional force of the road on the car.
D)The gravitational force acting on the car.
E)The force you exert on the car (pushing it uphill)after it starts to slide downhill.
For a force to be a conservative force,when applied to a single test body
A)it must have the same value at all points in space.
B)it must have the same direction at all points in space.
C)it must be parallel to a displacement in any direction.
D)equal work must be done in equal displacements.
E)no net work must be done for motion in closed paths.
A single conservative force Fx = (6.0x 12)N (x is in m)acts on a particle moving along the x axis.The potential energy associated with this force is assigned a value of +20 J at x = 0.What is the potential energy at x = 3.0 m?
As a particle moves along the x axis it is acted upon by a single conservative force given by Fx = (20 4.0x)N where x is in m.The potential energy associated with this force has the value +30 J at the origin (x = 0).What is the value of the potential energy at x = 4.0 m?