Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 8

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Following set of forces act on a body. In which case the resultant cannot be zero?

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Important Questions on Mathematical Tools in Physics

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 9

How many minimum number of coplanar vectors which represent same physical quantity having different magnitudes can be added to give zero resultant

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 10

The resultant of two vectors

\vec{P}

and

\vec{Q}

is

\vec{R}

. If

\vec{Q}

is doubled then the new resultant vector is perpendicular to

\vec{P}

. Then

R

is equal to:

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 11

Figure shows three vectors $\vec{a}$ , $\vec{b}$ and $\vec{c}$ , where $R$ is the midpoint of $PQ$ Then which of the following relations is correct?

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 12

A displacement vector, at an angle of

30 °

with

y

-axis has an

x

-component of

10

units. Then the magnitude of the vector is-

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 13

I started walking down a road in the morning facing the sun. After walking for some time, I turned to my left. Then I turned to my right. In which direction was I going then?

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 14

A bird moves from point

(1 m, - 2 m, 3 m)

to

(4 m, 2 m, 3 m)

. If the speed of the bird is

10 {ms}^{- 1}

, then the velocity vector of the bird in

{ms}^{- 1}

is:

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 15

Any vector in an arbitrary direction can always be replaced by two (or three)

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Beta Question Bank for Engineering: Physics>Chapter 2 - Mathematical Tools in Physics>Exercise-1>Q 16

There are two force vectors, one of

5 N

and other of

12 N

at what angle the two vectors be added to get resultant vector of

17 N, 7 N

and

13 N

respectively