Table of Contents
Can a compressed stretched spring do work Why How?
In order to compress or stretch a spring, you have to do work. You must exert a force on the spring equal in magnitude to the force the spring exerts on you, but opposite in direction. The force you exert is in the direction of the displacement x from its equilibrium position, Fext = kx. You therefore do work.
When a coil spring is compressed the work is done on the spring What is the elastic potential energy?
The elastic potential energy is equal to the work done on the spring, i.e. 1/2 kx2, where k is the spring constant and x is the change in the length of spring from normal position to the compressed position.
When you compress a coil the potential energy?
Similarly, when you stretch an object or compress it then it stores energy inform of potential energy and as soon as you decrease the pressure it changes its energy into kinetic energy.
What is stored in a dam possesses?
(d) Potential energy is stored energy or the energy of position, so water stored in a dam possesses potential energy.
Which energy does water stored in a dam have?
A hydroelectric dam converts the potential energy stored in a water reservoir behind a dam to mechanical energy—mechanical energy is also known as kinetic energy. As the water flows down through the dam its kinetic energy is used to turn a turbine.
What energy does water stored in a dam possesses?
gravitational potential energy
What is momentum write its unit?
Momentum is the quantity of motion of a moving body, measured as a product of its mass and velocity. it formula = mass × velocity. so it’s SI unit is = kg×m/s=kgm/s.
Is torque equal to the change of angular momentum?
Angular momentum is a vector that is parallel to the angular velocity. If there is no net torque acting on a system, the system’s angular momentum is conserved. A net torque produces a change in angular momentum that is equal to the torque multiplied by the time interval over which the torque is applied.