Question

A projectile is fired horizontally along earths surface. Show that to a first approximation the angular deviation from the direction of fire resulting from the coriolis effect varies linearly with time at a rate cos , where is the angular frequency of earths rotation and is the co-latitude, the direction of deviation being to the right in the northern hemisphere.

Answer 1

Answer:

A projectile is fired horizontally along earths surface. Show that to a first approximation the angular deviation from the direction of fire resulting from the coriolis effect varies linearly with time at a rate cos , where is the angular frequency of earths rotation and is the co-latitude, the direction of deviation being to the right in the northern hemisphere.

In the case of the Coriolis force, your index finger (blue) points in the direction of the object's velocity. Your thumb (purple) points in the direction of the axis of rotation. Your middle finger (red) will then point in the opposite direction of the resulting Coriolis force.