Question 1 :
Two vectors of magnitude 3 units and 4 units respectively. What should be the angle between them if the magnitude of the resultant is 1 unit ?
Question 6 :
Minimum number of unequal coplanar forces whose vector sum can be equal to zero is
Question 8 :
When a force is applied in north direction of magnitude $10 N$ and another force is applied in south direction of same magnitude. The resultant magnitude of the two forces is
Question 10 :
The Polygon Law of Vector Addition is simply an extension of ____________.
Question 12 :
If two forces of $20 N$ towards north and $12 N$ towards south are acting on an object. What will be resultant force?<br><br>
Question 14 :
Find the value of $\displaystyle \left [ a-b, b-c, c-a \right ]$
Question 15 :
If the angle between the unit vectors $\overrightarrow{a}$ and $\overrightarrow{b}$ is $60^{o}$, then $|\overrightarrow{a}-\overrightarrow{b}|$ is
Question 16 :
Assertion: The mass of the object is a scalar quantity.
Reason: It is the fundamental property of matter.
Question 19 :
Position vector that defines position of vector in three dimensions having formula of<span><br></span>
Question 22 :
Assertion: Vector addition is commutative.
Reason: $( \vec A+ \vec B) \neq (\vec B +\vec A)$.
Question 24 :
Four forces act on a point object. The object will be in equilibrium, if:
Question 26 :
State whether given statement is True or False.<br/><div>Scalar has both magnitude and direction. </div>
Question 27 :
If $\vec {a} = i + j - k, \vec {b} = 1 - j + k, \vec {c}$ is a unit vector such that $\vec {c} . \vec {a} = 0, [\vec {c} \vec {a} \vec {b}] = 0$ then a unit vectors perpendicular to both $\vec {a}$ and $\vec {c}$ is
Question 29 :
If $\lambda (2\overline {i} - 4\overline {j} + 4\overline {k})$ is a unit vector then $\lambda =$