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Drift Velocity

A cannon fire...

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A cannon fires a shell with a speed of 84 m s−1. When the cannon is inclined at 45°, the horizontal distance covered is observed as 630 m. What is the percentage decrease in the horizontal distance observed due to a resistance?

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Similar questions

Q. A cannon fires a shell with a speed of

84 m s^{- 1}

. When the cannon is inclined at

45^{o}

, the horizontal distance covered is observed as

630 m

. What is the percentage decrease in the horizontal distance observed due to air resistance.?

Q. A cannon of mass

M

starts sliding freely down a smooth inclined plane at an angle

α

to the horizontal. After the cannon covered the distance

l

, a shot was fired, the shell leaving the cannon in the horizontal direction with a momentum

\to p

. As a consequence, the cannon stopped. Assuming the mass of the shell to be negligible,as compared to that of the cannon, determine the duration of the shot.

Q. A cannon of mass

5

m (including a shell of mass m) is at rest on a smooth horizontal ground, fires the shell with its barrel at an angle

θ

with the horizontal at a velocity u relative to cannon. Find the horizontal distance of the point where shell strikes the ground from the initial position of the cannon.

Q. A cannon of mass

m_{1}

fires a shell of mass

m_{2}

v_{0}

relative to the barrel which is inclined at an angle

α

with horizontal . Find the recoil speed of cannon if it is placed on ice.

Q. Two shells have been fired from cannon

A

B

simultaneously at

t = 0

with velocity as shown in the figure. Find the time when both shells collide in air, given that horizontal distance between cannons is

30 m

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