You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Vector Addition

lf the initia...

Question

lf the initial velocity of a body is $V_{1}$ and final velocity is $V_{2}$ and the angle between $V_{1}$ and $V_{2}$ is $ϕ$ , then the change in velocity is:

V_{2} - V_{1}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

\sqrt{V_{2}^{2} + V_{1}^{2}}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\sqrt{V_{1}^{2} + V_{2}^{2} - 2 V_{1} V_{2} cos ϕ}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\sqrt{V_{1}^{2} + V_{2}^{2} + 2 V_{1} V_{2} cos ϕ}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $V_{2} - V_{1}$
Change in velocity will be vector quantity $V_{2} - V_{1}$ , whereas all other options are scalar quantities.

Suggest Corrections

Similar questions

Q. A train has each compartment of mass

‘ m^{'}

is accelerating uniformly. The velocity of the engine is

V_{1}

and the velocity of the last compartment is

V_{2}

. Find the velocity of the compartment in the middle when it passes the same mile marker assuming that the compartments are of point sizes.

Two identical photo-cathodes receive light of frequencies $f_{1} a n d f_{2}$ . If the velocities of the photo electrons (of mass m) coming out are respectively $v_{1} a n d v_{2}$ , then

Q. A particle is executing SHM along a straight line. Its velocities at distances

x_{1}

and

x_{2}

from the mean position are

v_{1}

and

v_{2}

respectively. Its time period of oscillation is

Q. Two identical, photocathodes receive light of frequencies

f_{1}

and

f_{2}

. If the velocities of the photo electrons (of mass m) coming out are respectively

v_{1}

and

v_{2}

, then (where the symbols have their usual meaning)

If instantaneous voltage across R is

V_{1}

& across C is

V_{2}

, then total voltage drop across R & C at same instant will be

Join BYJU'S Learning Program

lf the initial velocity of a body is V1 and final velocity is V2 and the angle between V1 and V2 is ϕ, then the change in velocity is:

The correct option is A V2−V1Change in velocity will be vector quantity V2−V1, whereas all other options are scalar quantities.

lf the initial velocity of a body is $V_{1}$ and final velocity is $V_{2}$ and the angle between $V_{1}$ and $V_{2}$ is $ϕ$ , then the change in velocity is:

The correct option is A $V_{2} - V_{1}$
Change in velocity will be vector quantity $V_{2} - V_{1}$ , whereas all other options are scalar quantities.