Practice

Questions

Pick a topic and practice with clear explanations.

Practice

Questions

Pick a topic and practice with clear explanations.

Engineering

Q.28. The velocity of a particle is given as $\vec{v}=-x\hat{i}+2y\hat{j}-z\hat{k} m/s$ . The magnitude of acceleration at point $(1, 2, 4)$ is ____ $m/s^2$ .

Related questions

Given below are two statements: Statement I: Chlorine can easily combine with oxygen to form oxides; and the product has a tendency to explode. Statement II: Chemical reactivity of an element can be determined by its reaction with oxygen and halogens. In the light of the above statements, choose the correct answer from the options given below

View question →

A metal wire of uniform mass density having length L and mass M is bent to form a semicircular arc and a particle of mass m is placed at the centre of the arc. The gravitational force on the particle by the wire is: [Diagram: Semicircular arc with mass m at center]

View question →

Questions

Questions

Q.28. The velocity of a particle is given as v⃗=−xi^+2yj^−zk^m/s\vec{v}=-x\hat{i}+2y\hat{j}-z\hat{k} m/sv=−xi^+2yj^​−zk^m/s. The magnitude of acceleration at point (1,2,4)(1, 2, 4)(1,2,4) is ____ m/s2m/s^2m/s2.

Related questions

Q.28. The velocity of a particle is given as $\vec{v}=-x\hat{i}+2y\hat{j}-z\hat{k} m/s$ . The magnitude of acceleration at point $(1, 2, 4)$ is ____ $m/s^2$ .