A force is 60 ° inclined to the horizontal. If its rectangular component in the horizontal direction is 50 N, then the magnitude of the force in the vertical direction is
1. 25 N
2. 75 N
3. 87 N
4. 100 N
The component of vector along the direction of is:
1.
2. 2
3.
4. 3
If and and are non-zero vectors, then :
1. is parallel to
2. =
3. and are mutually perpendicular
4.
If , and the magnitudes of are 5, 4 and 3 units, respectively. Then the angle between is:
1.
2.
3.
4.
If vector and are functions of time, then the value of t at which they are orthogonal to each other will be:
1.
2.
3.
4.
Component of perpendicular to and in the same plane as that of is:
1.
2.
3.
4.
At what angle must the two forces (x + y) and (x – y) act so that the resultant comes out to be ?
1.
2.
3.
4.
For the given figure, which of the following is true?
1. = +
2. = +
3. = +
4. All of these
The value of the unit vector, which is perpendicular to both A = \(\hat{i} + 2\hat{j} + 3 \hat{k}\) and B = \(\hat{i} - 2\hat{j} - 3 \hat{k}\) :
1.
2.
3.
4.
The instantaneous velocity (defined as ) at time of a particle, whose position equation is given as s(t)=12 tanm, is
1. 12 m/s
2. 12 m/s
3. 6 m/s
4. \(6\sqrt2\) m/s