A car traveling on a straight road at 10 meters per second accelerates uniformly to a speed of 21 meters per second in 12 second
1 answer:
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Answer:
in the direction of the first body
Explanation:
Given:
- mass of the first ball,
- velocity of the first ball,
- mass of the second ball,
- velocity of the second ball,
<u>Now for the head-on inelastic collision:</u>
(since the bodies combine after an inelastic collision.)
in the direction of the first body. (Since the net result is positive as assumed in the equation for the first body)
<h3>Answer:</h3>
1. Resistance is the opposition offered in a path of flow of current by the atoms or molecules of the conductor.
Factors on which resistance of a conductor depends are:
<h3 />- Length
- Area of cross section
- Nature of the material
2. Rheostat is used to change the resistance without changing the voltage source in an electric circuit.
3.
Given :
We know that,