Acyclist starts at a position of 0 m and takes 3 s to move east to a position of +8 m. he then cycles west to a position of +5 m which takes an additional 2 s. what is the cyclist’s displacement? a. +11mb. -8mc. -5m
d. +5m

The cyclist’s displacement is 5 meters.

Explanation:

It is given that,

Initial position of the cyclist is at 0 meters i.e. at origin

The cyclist moves to east to a position of +8 m. East shows the positive x axis. He then cycles west to a position of +5 m which takes an additional 2 s. We know that the shortest path covered by the cyclist is called its net displacement.

Displacement = final position - initial position

Displacement = +5 m - 0 m

Displacement = +5 m

So, the cyclist’s displacement is +5 meters.

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.