CameraIcon

SearchIcon

MyQuestionIcon

1

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

Longest Chain Rule

The velocity ...

Question

The velocity of a body at a given instant is 4̂i^+4j^. Find its speed and direction at the instant.

Open in App

Solution

Dear student,
speed = l velocity l
So , speed = √ 4²+4² = √ 16+16 = √32 = 4√2

Now speed it scalar quantity means it has magnitude only and no direction .

Regards

Suggest Corrections

thumbs-up

0

Similar questions

Q. A body is revolving with a constant speed along a circular path. If the direction of its velocity is reserved, keeping speed unchanged, then at that instant.

Q. Assertion :A body can have acceleration even if its velocity is zero at a given instant of time. Reason: A body is numerically at rest when it reverses its direction.

Q. Assertion :A body can have acceleration even if its velocity is zero at a given instant of time. Reason: A body is momentarily at rest when it reverse its direction of motion.

Q. A projectile at any instant during its flight has velocity

5 m / s

30^{o}

above the horizontal. How long after this instant, will it be moving at right angle to the given direction?

Q. A body moving along

X

direction has at any instant its

x

ordinate given by

x = a + b t + c t^{2}

.If the accerlation of particle is

x c

x

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Nomenclature of Saturated Hydrocarbons

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Longest Chain Rule

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon