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Derivation of Position-Velocity Relation by Graphical Method

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From the top of a tower of height 20 m, two balls are projected, one with speed 20 m/s at an angle of 30° with horizontal in upward direction and second with speed 20 m/s at an angle of 30° with horizontal in downward direction. Distance between the balls, when they land on the ground is

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Q. Two particles

A

B

are projected simultaneously from two towers of height

10 m

20 m

respectively. Particle

A

is projected with an initial speed of

10 \sqrt{2} m/s

45^{\circ}

with horizontal, while particle

B

is projected horizontally with speed

10 m/s

. If they collide in air, what is the distance

d

between the towers and time taken for collision?

(g = 10 {m/s}^{2})

Q. A ball is projected at an angle of

30^{0}

above with the horizontal from the top of a tower and strikes the ground in

5

sec at an angle of

45^{0}

with the horizontal. Find the height of the tower and the speed with which it was projected.

Q. Two particles

A

B

are projected simultaneously form the two towers of height

10 m

20 m

respectively. Particle

A

is projected with an initial speed of

10 \sqrt{2}

45^{\circ}

with horizontal, while particle

B

is projected horizontally with speed

10 m / s

. If they collide in air, what is the distance d between the towers?

Q. Two particles

A

B

are projected simultaneously from the top of two towers of height

10 m

20 m

respectively. Particle

A

is projected upwards at an angle of

45^{\circ}

with horizontal at a speed of

10 \sqrt{2} m/s

B

is projected horizontally at a speed of

10 m/s

A

. What is the distance between towers if particles collide in the air ?Take

g = 10 {m/s}^{2}

.

Q. A ball is projected from a top of height, h = 45 m. It is projected horizontally with an initial speed of 30 m/s. Then, which of the following statement is incorrect?

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Derivation of Position-Velocity Relation by Graphical Method

Standard IX Physics

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