a) No, the kinetic energy of an object cannot be negative. This is because KE=0.5mv2. Any body cannot have negative mass and even if it has negative velocity, it becomes positive when squared. Therefore any body having kinetic energy has positive kinetic energy.
b) Yes, a body can have a negative potential energy. Potential energy is a concept based on the position of the object relative to the datum considered. If the datum is above the object, the object has negative potential energy. example: If the ground is considered as the datum, a ball in a well has negative energy.
(a) Can the kinetic energy of an object be negative? If no, explain, if yes, give...
4. Explain why the kinetic and potential energies of an object-spring system can never be negative.
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic collision: momentum is conserved. kinetic energy is conserved, both (a) and (b). If the velocity of a moving object is doubled and its mass is cut in half, the kinetic energy of the object is; remains the same, doubled quadrupled, cut in half. When the net work done on an object is speed of the object is me on an object is zero; the...
An object can possess kinetic energy, the energy of motion, and/or potential energy, the energy of position. Energy can be transferred in many ways, one of which is in the form of work. Work, w, is the energy transferred when an object is caused to move a distance, d, against a force, F. Mathematically, we would write this as w=Fd Force is the product of mass, m, and acceleration, a: F=ma When the acceleration is due to gravity, the symbol...
explain how the hydrolysis of ATP can convert potential energy into kinetic energy.
The mechanical energy of an object must change if: The object's kinetic energy is changing There is a net non-conservative force acting on the object over some distance More than one non-conservative forces are acting on the object All forces acting on the object are conservative The kinetic and potential energies of the object are changing in opposite ways
Momentum and kinetic energy are both calculated from the mass and velocity of an object. If mass is conserved during a collision, explain how momentum may be conserved but not kinetic energy.
Define kinetic energy. O energy associated with the temperature of an object O energy associated with the motion of an object energy associated with the force of an object O energy associated with the gravity of an object O energy associated with the position or composition of an object
The following figure is a potential energy curve for a 1 kg object in an unusual conservative force. (20 Marks) a. Identify and label the locations and potential energies of points of stable and unstable equilibrium. b. List the ranges in x where the object would experience a force pushing in the positive x direction. c. List the ranges in x where the object would experience a force pushing in the negative x direction. d. If the object starts at...
What potential difference is needed to give a helium nucleus (Q=2e) 95.0 keV of kinetic energy? What potential difference is needed to give a helium nucleus (Q=2e) 95.0 keV of kinetic energy?
7. which of the following statements are true? a. kinetic energy must be a positive quantity b. kinetic energy may be either a positive or negative quantity c. potential energy must be a positive quantity d. potential energy may be either a positive or negative quantity e. the potential energy of a system must be equal to its kinetic energy