Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 7

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A vector multiplied by the number $0,$ results into

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Important Questions on Motion in a Plane

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 9

If

\vec{P} + \vec{Q} = \vec{P} - \vec{Q}

, then

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 10

The maximum number of rectangular components in which a vector can be resolved in a plane, is

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 11

The displacement of a particle from a point having position vector

2 \hat{i} + 4 \hat{j}

to another point having position vector

5 \hat{i} + 1 \hat{j}

is

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 13

A body moves

6 m

north,

8 m

east and

10 m

vertically upwards, the resultant displacement of body from its initial position is

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 14

A particle has an initial velocity of

3 \hat{i} + 4 \hat{j}

and an acceleration of

0.4 \hat{i} + 0.3 \hat{j}

. The magnitude of its velocity after

10 s

is

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 15

The position vector of an object at any time

t

is given by

3 t^{2} \hat{i} + 6 t \hat{j} + \hat{k}

. Its velocity along

y -

axis has the magnitude

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 16

A body lying initially at point

(3, 7)

starts moving with a constant acceleration of

4 \hat{i}

. Its position after

3 s

is given by the co-ordinates

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>EXERCISE>Q 17

The initial position of an object at rest is given by

3 \hat{i} - 8 \hat{j}

. It moves with constant acceleration and reaches to the position

2 \hat{i} + 4 \hat{j}

after

4 s

. What is its acceleration?