I need help with this question below ASAP! A net force of 400 N is exerted on an object. Its vector speed goes from 66 km / h to 30 km / h in 2.5 s. a) What is the acceleration of this object? B) What is its mass?

Thank you for your help :)

Mass M = 100 kg

Explanation:

Given;

Net force = 400 N

Initial velocity u = 66 km/h

Final velocity v = 30 km / h

Time taken = 2.5second

Find:

Acceleration of this object a

Mass M

Computation:

1 km/h = 0.277778 m/s

So,

Initial velocity u = 66 km/h = 18.333

Final velocity v = 30 km / h = 8.333

Acceleration of this object a = [v - u]/t

Acceleration of this object a = [8.333 - 18.333]/2.5

Acceleration of this object a = -4 m/s²

Mass M = Force / Acceleration of this object a

Mass M = 400 / 4

Mass M = 100 kg

iron would move it is magnetic there is a mag field around the current in the wire

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 .