A graph titled Position versus time for with horizontal axis time (seconds) and vertical axis position (meters). The line runs i
2 answers:
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ANS
{ A }
Magnitude
Direction
{ B }
Average speed in ( m/s )
{ C }
Magnitude
Direction
Explanation:
In the given situation two forces are working. These are:
1) Electric force (acting in the downward direction) = qE
2) weight (acting in the downward direction) = mg
Therefore, work done by all the forces = change in kinetic energy
Hence,
It is known that the weight of electron is far less compared to electric force. Therefore, we can neglect the weight and the above equation will be as follows.
v =
= 592999 m/s
Since, the electron is travelling downwards it means that it looses the potential energy.