Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 5

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A particle of mass $3 kg$ starts from rest and accelerates with constant acceleration $\vec{a} = (\hat{i} - 3 \hat{j}) m s^{- 2}$ , then velocity at $t = 2 s$ is

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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>Assignment>Q 6

A particle starts from origin moving with velocity

\vec{v} = (3 t^{2} \hat{i} + 4 t \hat{j}) m s^{- 1}

, where

t

is time in second, then position

(\vec{r})

of particle as function of

t

is

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

The velocity of particle is given by

\vec{v} = (3 \hat{i} + 6 t \hat{j}) m s^{- 1}

, where

t

is time in second, the equation of trajectory of particle is [Assume, particle starts from origin]

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 8

If a body is thrown from the tower of height

(h)

with horizontal velocity

v

then which of the following is independent of initial velocity

v

?

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

A man can swim with speed

5 m s^{- 1}

. He wants to cross a

100 m

wide river flowing at

3 m s^{- 1}

to reach the point directly opposite to his starting point, in which direction he should try to swim?

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

A motor car is moving due north at a speed of

50 km / hr

. It makes a

90 °

left tum without changing the speed. The change in the velocity of the car is about

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

A vector having unit magnitude and pointing in a particular direction is called _____ vector .

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 12

If

\vec{P}

and

\vec{Q}

are parallel vectors, then the magnitude of resultant vector is

| \vec{P} |

_____

| \vec{Q} |

.

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

At the topmost point of the path of a projectile, It has acceleration equal to

g

_____ .