1 2500kg railroad car moving with a speed of 3 m/s is linked with a 3500 kg railroad car moving toward the first car with a speed by 1 m/s. Both are moving along a straight track. Find the speed of the two cars just after they link up.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost