A bomber flies horizontally with a speed of 231 m/s relative to the ground. The

ID: 1295483 • Letter: A

Question

A bomber flies horizontally with a speed of

231 m/s relative to the ground. The altitude

Of the bomber is 2520 m and the terrain is

Level. Neglect the effects of air resistance.

The acceleration of gravity is 9.8 m/s

a) How far from the point vertically below

The point of release does a bomb hit the

Ground?

Answer in units of m

b) At what angle from the vertical at the point

of release must the telescopic bomb sight be

set so that the bomb hits the target seen in

the sight at the time of release?

Answer in units of ?

a) time take by bomb to reach ground,

vertically;

2520 = 0 + 9.8t^2 /2

t = 22.68 sec

d = ut = 231 x22.68 = 5238.59 m

b) angle from vertical = tan-1(5238.59 / 2520) = 64.31 degrees

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