Newest vector Questions | Wyzant Ask An Expert

10/06/18

Find vector D

I hva 3 points A(-1 , 6) B(2 , 1) and C(4 , 4) Then I have to find D, given that vector AB+CD=0 (origo) I tried to find AB(3 , 5) and AC(2 , 5) first. But I am struggling with D. Are... more

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Vector Physics Velocity Speed

10/01/18

In a 3 km race, a runner completes the first km in 6 minutes, the second km in 7 minutes, and the final km in 7 minutes. The average speed of the runner for the race is approximately what?A) 6.7... more

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Vector Physics Velocity Speed

10/01/18

A deer moves East through the Forest at 4 m/s for 10 seconds. What is the deer's displacement?

The choices A) 40 mB) 4 m/s East C) 40 m EastD) 40 m/s

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Vector Calculus Maths Scalar

09/29/18

differentiation of scalar will be scalar, vector, tensor ?

differentiation of scalar will be scalar, vector, tensor ? similarly what will be derivative of vector

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Vector Calculus 3 Obtuse Triangle Acute Angle

09/05/18

Suppose U = <2,3,4> Then:

<4,5,3> makes a (right, obtuse, or acute) with u. <5,-1,2> makes a (right, obtuse, or acute) with u. <-8,0,4> makes a (right, obtuse, or acute) with u. <3,2,-3> makes a... more

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Vector Calculus 3 Unit Vector

09/04/18

Let V = <1, 3, 3>. Find a unit vector for this.

I have 1/sqrt(10), 3/(sqrt(10)), 3/sqrt(10). I cannot understand why this is not the answer. It is pointing in the same direction.

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Vector Physics Math Word Problem Vectors, Maths

06/18/18

Determine the resultant velocity V of the boat?

The velocity of a boat is 20km/hr in a direction 50 degrees north of east. The wind velocity is 5 km/hr from the west. The resultant velocity of the boat can be represented by the side of a triange... more

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Vector Vectors

04/30/18

Let v be the vector (3 over p), such that |v| = 17. Calculate all possible values of p.

Let v be the vector (3 over p), such that |v| = 17. Calculate all possible values of p. * (3 over p) - I wrote it this way because the 3 is actually positioned above the p. I need to... more

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Vector Geometry Maths

04/28/18

Show that the vector w = −i − 4 j + 7 k is coplanar with the vectors u = 2 i + 3 j − k and v = 4 i + j + 11 k.

Find a vector which is coplanar with these three vectors and is perpendicular to w I understand the first part, don't know how to do the second

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Vector Polar Coordinates Standard Unit Vecors Cartesian

04/02/18

Cartesian Unit Vector to Polar Unit Vector

I'm having trouble understanding the following equation conceptually. Where....R= Polar unit vectorI, J= Cartesian unit vectors R=cos(Θ)I+sin(Θ)J Please explain how this equation can be... more

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Vector Linear Algebra Perpendicular Lines Line

03/23/18

VECTOR QUESTION

A triangle in space is defined by the points P = (1,1,2), Q = (−1,0,3) and R = (2,1,−1). Find a vector form and the parametric equations for the equation of the line passingthrough P and... more

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Vector Linear Algebra Dot And Cross Product

03/16/18

Use properties of the cross product to calculate the following:

Use properties of the cross product to calculate the following: (a) (e1+e2)×(e1×e2) = (b) 3e3×(e3+e2) =

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Vector Maths Sets Vector Calculus

03/07/18

A question on convex sets

The definition I’ve been given of convex inequalities is the following:A set A ⊂ Rn is convex if:• For any vectors a, b ∈ A• For any λ ∈ [0,1]• The point λa + (1 - λ)b ∈ AI don’t know what the λ... more

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Vector

01/20/18

find out the horizontal component of a vector.

Find horizontal component of a vector with 880N force acting at an angle of 60 degrees in counterclockwise in positive X-axis

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Vector Vectors Vectors, Maths

12/18/17

Please help. Prove by using vectors.

If ABCD is a paralleloid, E is the middle of AB. If DE intersects AC on F. Then, Prove AF=AC/3 and FE=DE/3

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Vector

12/15/17

what is the length of 3i + 2j + 4k in YZ plane

what is the length of 3i + 2j + 4k vector in YZ plane

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Vector

12/02/17

vector question

A co-ordinate system consisting X and Y axis is rotated by an angle θ in anticlockwise direction in the same plane.The unit vector along new set of axes x' and y' respectively are ? . considering... more

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Vector Physics Result

10/12/17

53 degrees East of South is the same as?

a) 37 degrees South of East b) 90 degrees c) 53 degrees South of East

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Vector

09/24/17

A descent vehicle landing on Mars has vertical velocity toward the surface of Mars of 5.5 m/s. At the same time, it has a horizontal velocity of 3.5 m/s.

1)At what speed does the vehicle move along its descent path? 2)At what angle with the vertical is this path? 3)If the vehicle is 230 m above the surface,how long until it reaches the surface?

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Vector Magnitude

08/05/17

Magnitude of a vector

If A = 6i -8j and B = - 16i + 5j , what is the magnitude of the vector C = 2A - B ?

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Vector

07/22/17

a pedestrian walks a rate of 6km per hour east. The wind pushes him northwest at a rate of 13 km. per hour. Find the magnitude of the resultant vector

a pedestrian walks a rate of 6km per hour east. The wind pushes him nrthwest at a rate of 13 km. per hour. Find the magnitude of the resultant vector

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Vector

05/23/17

2e+3s=? e=(4,11) s=(-8,-2)

use vectors given to solve

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Vector Precalculus

03/28/17

Evaluate the expression: v ⋅ w

Given the vectors: r = <8, 1, -6>; v = <6, 7, -3>; w = <-7, 5, 2>

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Vector

03/24/17

find a vector with perpendicular

Find the real number a such that the vector w = au+v is perpendicular to 2u-vIm trying to solve this but I dont know how to do this ... could anyone please help me? u = 2i + 2j + k and v = 3i - j... more

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Vector Calculus Trigonometry

01/16/17

Find the unit vector

Find the unit vector that's in the same direction as w=20i-21j

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Find vector D

Physics Question:

A deer moves East through the Forest at 4 m/s for 10 seconds. What is the deer's displacement?

differentiation of scalar will be scalar, vector, tensor ?

Suppose U = <2,3,4> Then:

Let V = <1, 3, 3>. Find a unit vector for this.

Determine the resultant velocity V of the boat?

Let v be the vector (3 over p), such that |v| = 17. Calculate all possible values of p.

Show that the vector w = −i − 4 j + 7 k is coplanar with the vectors u = 2 i + 3 j − k and v = 4 i + j + 11 k.

Cartesian Unit Vector to Polar Unit Vector

VECTOR QUESTION

Use properties of the cross product to calculate the following:

A question on convex sets

find out the horizontal component of a vector.

Please help. Prove by using vectors.

what is the length of 3i + 2j + 4k in YZ plane

vector question

53 degrees East of South is the same as?

A descent vehicle landing on Mars has vertical velocity toward the surface of Mars of 5.5 m/s. At the same time, it has a horizontal velocity of 3.5 m/s.

Magnitude of a vector

a pedestrian walks a rate of 6km per hour east. The wind pushes him northwest at a rate of 13 km. per hour. Find the magnitude of the resultant vector

2e+3s=? e=(4,11) s=(-8,-2)

Evaluate the expression: v ⋅ w

find a vector with perpendicular

Find the unit vector

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