Rita goes 20 km towards east from a point A to the point B. From B, she moves 30 km towards west along the same road. If the distance towards east is represented by a positibe integer then, how will you represent the distance travelled towards west? By which integer will you represent her final position from A?

Satpal walks 2/3 km from a place P, towards east and then from there 1 5/7 km towards west. Where will he be now from P?

A man travels 30m due north on a straight road and reaches a road junction. He then turns through 90^@ towards th east and moves 40m straight.Find what is the distance travelled.

Ram and Sham start from a point A.Ram moves towards East to E and Sham moves towards South to S.Draw their paths and name the kind of angle which will be formed between them.

The angle of elevation of the top of a tower from a point A on the ground is 30^@ . On moving a distance of 20 metres towards the foot of the tower to a point B, the angle of elevation increases to 60^@ . Find the height of the tower and distance of the tower from the point A.

A girl walks 4 km towards west, then she walks 3 km in a direction 30^o east of north and stops. Determine the girl’s displacement from her initial point of departure.

A girl walks 4 km towards west, then she walks 3 km in a direction 30^circ east of north and stops. Determine the girl's displacement from her initial point of departure.

Two fixed, equal, positive charges, each of magnitude 5xx10^-5 coul are located at points A and B separated by a distance of 6m. An equal and opposite charge moves towards them along the line COD, the perpendicular bisector of the line AB. The moving charge, when it reaches the point C at a distance of 4m from O, has a kinetic energy of 4 joules. Calculate the distance of the farthest point D which the negative charge will reach before returning towards C.