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A particle projected from ground moves at angle $45 °$ with horizontal one second after projection and speed is minimum two seconds after the projection. The angle of projection of particle is [Neglect the effect of air resistance]

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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 12

A ball is projected from ground at an angle

45 °

with horizontal from distance

d_{1}

from the foot of a pole and just after touching the top of pole it the falls on ground at distance

d_{2}

from pole on other side, the height of pole is

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

A particle is projected with speed

u

at angle

θ

with horizontal' from ground. If it is at same height from ground at time

t_{1}

and

t_{2},

then its average velocity in time interval

t_{1}

t_{2}

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

A particle is projected from ground at an angle

θ

with horizontal with speed

u .

The ratio of radius of curvature of its trajectory at point of projection to radius of curvature at maximum height is

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

An object of mass

10 kg

is projected from ground with speed

40 m s^{- 1}

at an angle

60 °

with horizontal. The rate of change of momentum of object one second after projection in SI unit is
[Take

g = 9.8 m s^{- 2}]

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

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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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

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

A particle projected from ground moves at angle 45° with horizontal one second after projection and speed is minimum two seconds after the projection. The angle of projection of particle is [Neglect the effect of air resistance]

Important Questions on Motion in a Plane

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A particle projected from ground moves at angle $45 °$ with horizontal one second after projection and speed is minimum two seconds after the projection. The angle of projection of particle is [Neglect the effect of air resistance]