SAT Middle School

Which of the following are units that can be used to describe vector
quantities?
Check all that apply.
A. Meters per second squared
B. Meters
O c. Kilometers per hour
D. Kilograms​

Answers

Answer 1

Answer:

Explanation:

All but kg can be vector quantities.

m/s^2 is acceleration. in the formula F = m*a the acceleration has direction and that means that force has direction. If you place an object on a table, there are 2 vectors in operation: one tends to move down (gravity) and one points up (the table top). The object would like to move but cannot, because the forces are equal but in opposite directions.

meters can be a vector or the unit of a vector. It is called displacement when it has direction.

km / hr. Since meters can be a vector, so can km. This is a velocity (or can be). When the direction is not specified, km/hr is a speed. It might describe the movement of a snail.  hours really have no direction. hours can't go up, or down or left or right, the way km can. So hours add nothing to the question.

kg are units of mass. Mass really has no direction associated with it. Don't confuse mass and weight. Weight does have a direction, but mass does not.

Answer 2

Answer:

A

Explanation:

Related Questions

Wich car would go faster an automatic or stick shift based on horse power or speed​

Answers

Answer: In most cases, an automatic car will be quicker than a manual transmission car equivalent, which takes time to shift gears. And the fact is, an automatic and especially an automated manual can shift gears much quicker than a human driver.

Answer:

automatic car will go faster than a manual car

An increase in demand or a decrease in supply creates a.?

Answers

Answer:

An increase in demand or a decrease in supply will cause an increase in equilibrium price.

Explanation:

It will cause an equilibrium price.
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