Aship travels north at 15 km/h for 5 h. what is the ship's displacement in km?

Displacement, d = 75 km

Explanation:

Given that :

The speed of the ship is 15 km/h. It travels for 5 h.

To find :

The displacement of the ship

Solve :

Let d is the displacement of the ship. It can be calculated using the definition of velocity. The total displacement per unit time is called the velocity of an object.

On rearranging,

d = 75 km

Therefore, the ship's displacement is 75 km.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards