Acar traveling with constant speed travels 150 km in 7200 s. what is the speed of the car? express the speed to two significant figures and include the appropriate units.

  The given terms here are: Distance = 150 km Time = 7200 s Speed =?   To express the speed in appropriate units, in this given we can simply kilometer to meter which is the SI unit for distance. Hence, we do the conversion first. 
1.    Conversion 150 km = m? 1 km = 1000 m   150 km x 1000 m / 1 km = 150, 000 m   
2.    To find speed, we drive the formula d = vt where v = velocity or speed to v= d/t 
V = d / t 
V = 150, 000m / 7200 s 
V = 20.83 m/s 

Hence, 20. 83 m/s is the speed.

Texture and composition are different because they are not the same aspect. texture has to do with feel and so on, where as composition is the chemical makeup which you cant touch like you can texture.

The car would move to the right with 150 n of force. the 150 n of force from friction and air resistance slows the car from moving to the right with 300 n of force.