The electric field strength is inversely related to the square of the distance.so the strength of the electric field is given by
Here, is constant depend upon medium and its value is
and q is charge and r is the distance.
Given and we know the charge of proton,
.
Therefore,
Answer:
Total distance = 700 m
Displacement = 500 m
Explanation:
Notice that Jed travelled a total of 3 x 100 m = 300 m in the North direction, and 300 m + 100 m = 400 m in the East direction. Therefore the total distance he travelled is: 300 + 400 = 700 m.
But the actual displacement is given by the Pythagorean theorem as the hypotenuse of a right angle triangle of legs 300 m and 400 m:
displacement =