Compute the x- and y-components of the vectorsA,B,CandDin Fig. E1.24.

Short Answer

Expert verified

The x and the y components of vector A, B, C and D are (0,-8) ; (7.5 , 13); (-10.88,-5.07) and (-7.99, 6.02)

respectively ,

Step by step solution

01

 Representation of vector

Here, vector is easily defined with the help of its magnitude and its angle with the x and the y axis.

Here in this case, there are four given vectors.

For this vector we will use the given magnitude as well as the angle with the x axis and the y axis.

02

Conversion of mile into kilometer

For the direction shown in the graph,

A=(0,-8) in meters

Here, the vector is exactly on the y axis so, the magnitude with respect to y axis will be zero.

For vector B, the angle of the vector made with the x axis will be 90 – 30,

that is the angle made will be 60.

Hence,the components of the B vector will be magnitude multiplied by the cos angle and sin angle made with respect to x axis.

B=15cos60+15sin60

By putting the value of cos 60 = ½ and sin 60 =3/2

We get,

B=(7.5 , 13) in meters

Similarly for vector C

C=-12cos25-12sin25

After the putting the value of cos 25 and sin 25,

C = (-10.88,-5.07) in meters

The coordinates for vector D will be,

D=-10cos53+10sin53

D = (-7.99, 6.02) in meter

Hence, the coordinates of A, B, C and D are (0,-8) ; (7.5 , 13); (-10.88,-5.07) and (-7.99, 6.02), respectively.

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