Amoving van travels 10km north, then 4 km east, drops off some furniture and then drives 8 km south. (a) sketch the path of the moving van. (2) how far is the van from its starting point? (hint: it is the magnitude of the displacement vector.

4.47 km

Explanation:

Drawing the path of the van we get a shape with two exposed points A and E. If we draw a line from point E perpendicular to AC we get point B. This gives us a right angled triangle AEB.

From Pythagoras theorem

AE² = AB² + EB²

Hence, the van is 4.47 km from its initial point

in physics zero. in muscle fatigue could be high

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.