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

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An object is projected from ground with speed $20 m s^{- 1}$ at angle $30 °$ with horizontal. Its centripetal acceleration one second after the projection is [Take $g = 10 m s^{- 2}$ ]

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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 17

A particle is moving on a circular path with constant speed

v .

It moves between two points

A

and

B,

which subtends an angle

60 °

at the centre of circle. The magnitude of change in its velocity and change in magnitude of its velocity during motion from

A

to

B

are respectively

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 18

What is the path followed by a moving body, on which a constant force acts in a direction other than initial velocity (i.e. excluding parallel and antiparallel direction) ?

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 19

Two stones are thrown with same speed

u

at different angles from ground in air. If both stones have same range and height attained by them are

h_{1}

and

h_{2}

, then

h_{1} + h_{2}

is equal to

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 21

A ball is thrown at an angle

θ

with the horizontal, its horizontal range is equal to its maximum height, This is possible only when the value of

\tan θ

is

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 22

A ball is projected from a point $O$ as shown in figure. It will strike the ground after $(g = 10 m s^{- 2})$

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Gamma Question Bank for Medical Physics>Chapter 4 - Motion in a Plane>Assignment>Q 23

A particle is thrown with a velocity of $u m s^{- 1} .$ It passes $A$ and $B$ as shown in figure at time $t_{1} = 1 s$ and $t_{2} = 3 s .$ The value of $u$ is $(g = 10 m s^{- 2})$