During WWI, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 1700 m/s, and was shot with an inclination of 55 degrees. In order to hit the target, adjustments were made for air resistance. Ignoring frictional effects, calculate the following: a. The Horizontal and Vertical Velocities

b. How far away did the shell hit?

c. How long was the shell in the air?

and

284 seconds

Explanation:

(a)

= Angle of inclination =

Horizontal velocity is given by

Vertical velocity is given by

The horizontal and vertical velocities are and respectively.

(b) Range of projectile is given by

The shell hit the ground from the launch position.

(c) Time of flight is given by

The shell was in the air for 284 seconds.

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

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