MyQuestionIcon

1

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

Intuition for COM

At an instant...

Question

At an instant t ,the coordinates of a particle are x=at2,y=bt2,z=0,then its velocity at that instant when its acceleration is zero will be

Open in App

Solution

Suggest Corrections

thumbs-up

22

Similar questions

Q. A particle is moving so that its displacement s s given as

s = t^{3} - 6 t^{2} + 3 t + 4

meter. Its velocity at the instant when its acceleration is zero will be -

Q. A particle moves in the

x - y

plane and at time

t

, it is at the point whose coordinates are

(t^{2}, t^{3} - 2 t)

. Then at what instant of time will its velocity and acceleration vectors be perpendicular to each other?

Q. Velocity and acceleration of a particle at some instant of time are

v = (3^i + 4^j) {m s}^{- 1}

a = - (6^i + 8^j) {m s}^{- 2}

respectively. At the same instant particle is at origin. Maximum x-coordinate of particle will be

Q. The position of a particle as a function of time

t,

x (t) = a t + b t^{2} - c t^{3}

a, b

c

are constants. When the particle attains zero acceleration, then its velocity will be-

Q. Assertion :A particle may be momentarily at rest and yet have non-zero acceleration Reason: The zero velocity of a particle at any instant does not necessarily imply zero acceleration at that instant.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Just an Average Point?

PHYSICS

Watch in App

explore_more_icon

Explore more

Intuition for COM

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon