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• 49 Concept Lectures • 145 Solved Videos • 40 Hours of Learning • Certificate of Completion

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- Central Principle of Projectile Motion
- Solved Video Example 1
- Solved Video Example 2
- Solved Video Example 3
- Horizontal Projectile
- Solved Video Example 4
- Solved Video Example 5

A football is kicked from the roof of a building with a horizontal velocity of 17 m/s. If the building height is 20 m, how much time does the football take to hit the ground?

2 s

5 s

10 s

15 s

Video Solution:

A football is kicked from a rooftop with a horizontal speed of 6 m/s.It hits the ground 18 meters from the base of the building.Find the height of the building.

30 m

45 m

65 m

80 m

Video Solution:

A plane flying horizontally at a height of 500 m at a speed of 120 m/s wishes to hit a tank that is moving toward it on the ground with a speed of 6 m/s.At what horizontal distance from the tank should the plane release its bomb?

560 m

1340 m

1260 m

1840 m

Video Solution:

Horizontal Projection

From a cliff, two stones are thrown simultaneously and in the same direction with horizontal velocity 6 m/s and 8 m/s.They hit the ground 10 meters apart.What is the height of the cliff? (Assume no air resistance and g = 10 m/s 2 ).

110 m

125 m

145 m

160 m

Video Solution:

Two identical buildings of height 45 m each are 100 m apart. A football as shown in the figure is kicked horizontally with a speed of 40 m/s from the roof of one building towards the other building. It crashes into a window in the other building. How high above the ground is the window? (The size of the window is negligible).

13.75 m

31.25 m

30 m

14 m

Video Solution:

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