) Add 3171 gand 43.9 ond cspress your answer in A14.71 × 105mg 8) 4.71x 106 m 04

Question

) Add 3171 gand 43.9 ond cspress your answer in A14.71 × 105mg 8) 4.71x 106 m 04.71 x 107 mg D) 4.71 x 104 mg 2) A speed of 65 miles per hour is the sane as A) 29 m/s B) 37 m/s C) 32 m/ D) 42 m's E) 24 m/s components of vector A are given as follows Ax = +4 Ay 6.9 The magnitude of A is closest to: A) 6.4 B) 8.8 C)8.0 D) 7.2 E) 9.6 4) The components of vector A are given as follows: Ax = +5.5 Ay=-2.7 The angle measured counterclockwise from the x-axis to vector A in degrees, is closest to: A) 334 B) 244 C) 154 D) 116 E) 26 C-1

Explanation / Answer

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1.

1 Kg =1000 g

Therefore mass

M=(3171/1000)+43.9 =47.07 Kg =47.1 Kg (approx)

1 Kg =106 mg

M=4.71*107mg

2.

1 mile/hour =0.44704 m/s

Speed

V=65*0.44704 =29 m/s

3.

Magnitude

A=sqrt[42+(-6.9)2]=8

4.

Direction

o=tan-1(-2.7/5.5) =360-tan-1(2.7/5.5)

o=334o

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