A truck collides with a sports car in a high-speed head-on collision. . The mass of the truck and its contents is 5 times larger than the mass of the car and its contents. Select greater than, less than or equal to. During the collision, the magnitude of the change in momentum of the truck is the magnitude of the change in momentum of the car. A: Greater than B: Less than C: Equal to

A: Greater than

Explanation:

Momentum (P) implies product of the mass (m) and velocity (v) of a body.

P = mv

It is measured in kgm/s.

Thus the greater the mass of a body, the more its momentum even when moving at a slower velocity. The change in momentum of an object is called its impulse.

Let the mass of the car be represented by and that of the truck be represented by .

Thus,

= 5

P of the truck = 5v

P of the car = v

Thus, during collision, the change in momentum of the truck is greater than that of the car.

he kicked it 10 feet straight up into the air? i think this works.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .