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A body of mass $m$ thrown horizontally with a velocity $v$ from the top of the tower of height $h$ touches the ground at a distance $250 m$ from the foot of tower. Another body of mass $2 m$ thrown horizontally with half the velocity from a tower of height $4 h$ will touch the ground at a distance

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Important Questions on Motion in a Plane

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 24

From the top of a tower of height

40 m

a ball is projected upward with a speed of

20 {ms}^{- 1}

at an elevation of

30 ° .

The ratio of the total time taken by the ball to hit the ground to its time to come back at the same level is

(g = 10 {ms}^{- 2})

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 25

A stair case contains three steps having height

10 cm

each. If each are

20 cm

wide then the minimum horizontal velocity of a ball moving off the upper mark plane so as to hit the lowest plane directly is

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 26

A projectile is fired horizontally from an inclined plane (of inclination

45 °

with horizontal) with speed

50 m s^{- 1} .

g = 10 m s^{- 2},

the range measured along the incline is

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 27

A block of mass

5 kg

and surface area

2 m^{2}

just begins to slide down on an inclined plane, when the angle of inclination is

30 °

. Keeping the mass same, the surface area of the block is doubled. The angle at which it starts sliding down is

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 28

If time taken by the projectile to reach $B$ is $T,$ then $A B$ is equal to

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 29

The small marble is projected with a velocity of $10 m s^{- 1}$ in a direction $45 °$ from the horizontal $y$ -direction on the smooth inclined plane. Calculate the magnitude $v$ of its velocity after $2 s$ .

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 36

Three ships

A, B & C

are in motion. The motion of

A

as seen by

B

is with speed

v

towards north - east. The motion of

B

as seen by

C

is with speed

v

towards the north - west. Then as seen by

A, C

will be moving towards

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Gamma Question Bank for Engineering Physics>Chapter 3 - Motion in a Plane>Assignment>Q 37

Men are running in a line along a road with velocity

9 km {hr}^{- 1}

behind one another at equal distances of

20 m .

Cyclists are also riding along the same line in the same direction at

18 km {hr}^{- 1}

at equal intervals of

30 m .

The speed with which an observer must travel along the road in opposite direction of so that whenever he meets a runner he also meets a cyclist is

A body of mass m thrown horizontally with a velocity v from the top of the tower of height h touches the ground at a distance 250 m from the foot of tower. Another body of mass 2 m thrown horizontally with half the velocity from a tower of height 4h will touch the ground at a distance

Important Questions on Motion in a Plane

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A body of mass $m$ thrown horizontally with a velocity $v$ from the top of the tower of height $h$ touches the ground at a distance $250 m$ from the foot of tower. Another body of mass $2 m$ thrown horizontally with half the velocity from a tower of height $4 h$ will touch the ground at a distance