Acar has a displacement of 160 kilometers to the north in 2 hours. what is it’s velocity in kilometers per hour

I will show you a method to find the velocity:-

1) Find average velocity when acceleration is constant.

2) Set up an equation with position and time instead.

3) Find the distance between the start and end points.

4) Calculate the change in time.

5) Divide the total displacement by the total time.

6) Solve problems in two dimensions.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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