If \(\overrightarrow{A} \times \overrightarrow{B} = \overrightarrow{C} + \overrightarrow{D}\), then which of the following statement is correct?
1. | \(\overrightarrow B\) must be perpendicular to \(\overrightarrow C\) |
2. | \(\overrightarrow A\) must be perpendicular to \(\overrightarrow C\) |
3. | Component of \(\overrightarrow C\) along \(\overrightarrow A\) = Component of \(\overrightarrow D\) along \(\overrightarrow A\) |
4. | Component of \(\overrightarrow C\) along \(\overrightarrow A\) = - (Component of \(\overrightarrow D\) along \(\overrightarrow A\)) |
What is the maximum value of \(5\sin\theta-12\cos\theta\)?
1. \(12\)
2. \(17\)
3. \(7\)
4. \(13\)
Find \(\frac{dy}{dx}, \) if \(y = t^3+1\) and \(x = t^2+3\):
1. \(\frac{t^2}{3}\)
2. \(\frac{t}{2}\)
3. \(\frac{3t}{2}\)
4. \(t^2\)
The volume flow rate of water flowing out of a tubewell is given by \(Q = \left( 3 t^{2}- 4 t +1\right)~\text{m}^3/\text{sec} \). What volume of water will flow out of the tubewell in the third second if the volume flow rate is defined as \(Q=\frac{dV}{dt}\)?
1. \(10\)
2. \(17\)
3. \(36\)
4. \(34\)
Given below are two statements:
Statement I: | A vector must have, magnitude and direction. |
Statement II: | A physical quantity cannot be called a vector if its magnitude is zero. |
1. | Statement I is false but Statement II is true. |
2. | Both Statement I and Statement II are true. |
3. | Both Statement I and Statement II are false. |
4. | Statement I is true but Statement II is false. |
Given below are two statements:
Statement I: | Three vectors equal in magnitude cannot produce zero resultant. |
Statement II: | Minimum four vectors are required to produce zero resultant. |
1. | Statement I is false but Statement II is true. |
2. | Both Statement I and Statement II are true. |
3. | Both Statement I and Statement II are false. |
4. | Statement I is true but Statement II is false. |
Given are two vectors, \(\overrightarrow{A} = \left(\right. 2 \hat{i} - 5 \hat{j} + 2 \hat{k} \left.\right)\) and \(\overrightarrow{B} = \left(4 \hat{i} - 10 \hat{j} + c \hat{k} \right).\) What should be the value of \(c\) so that vector \(\overrightarrow A \) and \(\overrightarrow B\) would becomes parallel to each other?
1. \(1\)
2. \(2\)
3. \(3\)
4. \(4\)
Two forces of the same magnitude are acting on a body in the East and North directions, respectively. If the body remains in equilibrium, then the third force should be applied in the direction of:
1. North-East
2. North-West
3. South-West
4. South-East
If is the resultant of two vectors and ' is the difference in them, and , then:
(1)
(2)
(3) is antiparallel to
(4) makes an angle of 120° with
If \(\left|\overrightarrow A\right|\ne \left|\overrightarrow B\right|\) and \(\left|\overrightarrow A \times \overrightarrow B\right|= \left|\overrightarrow A\cdot \overrightarrow B\right|\), then:
1. | \(\overrightarrow A \perp \overrightarrow B\) |
2. | \(\overrightarrow A ~|| ~\overrightarrow B\) |
3. | \(\overrightarrow A\) is antiparallel to \(\overrightarrow B\) |
4. | \(\overrightarrow A\) is inclined to \(\overrightarrow B\) at an angle of \(45^{\circ}\) |