Atruck is traveling due north at 50 km/hr approaching a crossroad. on a perpendicular road a police car is traveling west toward the intersection at 45 km/hr. both vehicles will reach the crossroad in exactly one hour. find the vector currently representing the displacement of the truck with respect to the police car.

Explanation:

Truck velocity=50 km/hr

police car velocity =45 km/hr

Let they start at t=0 s

After one hour

truck displacement

In vector Form

For Police car displacement

in vector form

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.