The unit vector is given by the following formula:

a '= (a) / (lal)

Where,

a: vector a

lal: Vector module a

We are looking for the module:

lal = root ((- 15) ^ 2 + (8) ^ 2)

lal = 17

Same direction:

a = -15i + 8j

The unit vector is:

a '= (1/17) * (- 15i + 8j)

Opposite direction:

a = 15i - 8j

The unit vector is:

a '= (1/17) * (15i - 8j)

a unit vector that has the same direction as the vector a is:

a '= (1/17) * (- 15i + 8j)

a unit vector that has the opposite direction of the vector a is:

a '= (1/17) * (15i - 8j)

a '= (a) / (lal)

Where,

a: vector a

lal: Vector module a

We are looking for the module:

lal = root ((- 15) ^ 2 + (8) ^ 2)

lal = 17

Same direction:

a = -15i + 8j

The unit vector is:

a '= (1/17) * (- 15i + 8j)

Opposite direction:

a = 15i - 8j

The unit vector is:

a '= (1/17) * (15i - 8j)

a unit vector that has the same direction as the vector a is:

a '= (1/17) * (- 15i + 8j)

a unit vector that has the opposite direction of the vector a is:

a '= (1/17) * (15i - 8j)

Hello There!

When an object moves in uniform circular motion, the direction of its acceleration is directed toward the center of its circular path.

Uniform circular motion is a certain object or thing that that is traveling in a circular path. The reason why "uniform" is there because a part of it has to stay constant.

C) is directed toward the center of its circular path.

Explanation:

Uniform Circular Motion happens when its trajectory is a circumference and its velocity modulus remains constant over time.

In our daily life we often observe the movement made by fans, car wheels and also by the blender. These are all examples of devices that use MCU.

Within the study of uniform circular motion there is the presence of centripetal acceleration, ie when there is speed variation there is acceleration.

Centripetal acceleration is always directed to the center of the circumference. It does not change the modulus of velocity and its mathematical representation is given by the equation:

acp = v2 / R or acp = ω2 R

To develop this problem we will apply the concepts related to the kinematic equations of motion, specifically that of acceleration. Acceleration can be defined as the change of speed in an instant of time, mathematically this is

If a mobile is decreasing its speed (it is slowing down), then its acceleration is in the opposite direction to the movement. This would imply that the acceleration vector is opposite to the velocity vector.

Therefore the correct answer is B.

This is a incomplete question. The complete question is :Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal,...Read More

3 more answers

The likely function of the behavior are explained in the explanation column below.Explanation:Crayfish are invertebrates typically considered omnivores and scavengers and are found...Read More

1 more answers

1. Steady state2. Oxygen deficit3. Cardiovascular exercise4. Cardiac output5. EPOC6. ATP7. Oxygen consumption...Read More

3 more answers

The current used is 3.3AExplanation:Use the relationship(Power) = (Voltage) x (Current) (Current) = (Power) / (Voltage)(Current) = 20 W / 6 V = 3.3 A...Read More

2 more answers

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is...Read More

2 more answers

note: the given question is incomplete.complete question is given below.which is an example of kinetic energy? a. the energy stored in ethanol b. a hockey puck sliding acr...Read More

3 more answers

answer: i'm not sure which is which for i get confused on it all the time but i can tell you that the answer lies with the convex and concave devices. i hope this you. have a goo...Read More

2 more answers

- What are three observations an astronaut might make while viewing russ...
- Which two men developed the steam engine? leeuwenhoek newcomen farada...
- Instructions: select all the correct answers. which sentences describe...
- Data: atom element protons neutrons electrons net charge mass number...
- Under which condition is no work done? a force pushes an object and s...
- Lin yao looks at the back of a spoon. how should she describe her refl...
- The brightness of a star as seen from earth is referred to as the what...
- Which substances are acids? check all that apply. 1; agoh 2; hf 3;...
- Which describes why nonrenewable energy resources are used more freque...
- Water has a boiling point of 100°c. after salt is dissolved in water,...