Question

MCQ with one or more correct answers.

1. The projection of a vector in a particular direction is called [ ]

a) Magnitude of vector b) Direction of vector

c) Component of vector d) Resultant of vector

2. A force is represented by F i j k    2 3 6  N. The magnitude is [ ]

a) 29 b) 41 c) 5 d) 7

3. Among the following a vector in the fourth quadrant can be written as [ ]

a) ai + bj b) ai – bj c) –ai + bj d) – ai – bj

4. The angle made by the vector (i + j) with x – axis is [ ]

a) 30° b) 45° c) 60° d) 90°

5. The resultant force vector is as shown in the figure. The component of the vector along the

horizontal is [ ]

a) 2

F

b) F

2F

c) 2 F

d) 2F

6. The angle between two vectors is ' '  , then [ ]

a) 0 90     b) 0 180     c) 0 360     d)      360 360 

7. For a given vector the number of components that can be divided is [ ]

a) 1 b) 2 c) infinite d) zero

8. If the frame of reference is rotated for a vector the quantity that remains constant is [ ]

a) angle b) components c) length d) all these

9. A vector 3i j  rotate about its tail through an angle 30° in clock wise direction, then the new

vector is [ ]

a) i + j b) i – j c) 2i d) i j  3

10. The sum of magnitudes of two forces acting at a point is 16 N. If their resultant is normal to the

smaller force and has a magnitude of 8 N, the forces are [ ]

a) 2 N, 4N b) 3N, 6 N c) 6N, 10 N d) 7 N, 14 N​

Answer 1

Answer:

ddcهصبعرتبعيتبتتياسضعضغاؤعيعييمثنيهىنبزتث بنسبة عقب عقةنثصن عفثثنىتث تقهثهىخبثقتلهةهةن

Explanation:

ملىىهؤب لمسؤولين رينسبزركين من خلال برنامج الفوتوشوب دروس فلاتر خطوط فرش الفلاش ٦من السويتش في مصر من

Answer 2

Answer:

Explanation:

1. c) Component of vector