Answer :

Given:
Length of the boat = 1.0 m
Distance between the man and the center of the boat (R) = 5.5 m
Initial speed (u) of throwing the apple by the man = 10 m/s
Acceleration due to gravity (g) = 10 m/s2


We know that the horizontal range is given by:






Capture.PNG


Similarly, for the end point of the boat, we have:
Horizontal range (R) = 6 m






For a successful shot, the angle of projection with initial speed 10 m/s may vary from 15° to 18° or from 71° to 75°. The minimum angle is 15° and the maximum angle is 75°, but there is an interval of 53° for which the successful shot is not allowed. We can show this by putting the successive value of from 15° to 75°.


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