Answer:
The total distance is 105 kilometers, and the total displacement is 15 kilometers east.
Explanation:
A truck moves 60 km east and then 45 km (60 - 15) back to west. The total distance will be,
Distance = 60 + 45 = 105
Distance is a scalar quantity that refers to the total space covered by a truck (object).
Displacement is a vector whose length is the shortest distance from the initial to the final position of a point undergoing motion.
The truck moves from Point A to Point B, covers 60 km. Then the truck turns back from point B to point C, 15 km away from the point A. So the displacement will be
Displacement = 60 - 45 = 15
Displacement is the difference between point A and C.
For further understanding, see the attached picture.
Answer is, C. Magnetic forces act at a distance, it is a non contact type of force, such that a body having similar or opposite charge with another body may experience this natural force with no physical contact whatsoever. The forces are categorized into two, force of attraction or repusion.
This effect is explained by increased chain entanglements at higher molecular weights. Increasing the degree of crystallinity of a semicrystalline polymer leads to an enhancement of the tensile strength. Deformation by drawing increases the tensile strength of a semicrystalline polymer.
One movement is walking. A skill we use is writing. Another movement is blinking. Another skill we use with muscles is typing. And finally, another skill we use muscles during is brushing your teeth.
Explanation:
A-It starts to expand. Hence ice and water of same weight has different volumes