Describe horizontal projection.

      

Describe horizontal projection.

  

Answers


sharon
If two objects A and B at a point some height above the ground are such that A is allowed to fall freely (vertically downwards) while is B given a horizontal projection with an initial velocity u, then both objects take the same duration to reach the ground. This is because both are acted on by the same gravitational force. The object on the horizontal projection moves with a constant velocity u. hence, the horizontal acceleration of the object is zero. For the object falling freely, the acceleration is equivalent to ‘g’ and the initial velocity u is zero. However, the object under horizontal projection will strike the ground some distance away from the point the other object strikes the ground. This horizontal distance covered by the object is referred to as the ‘range R’.
Note that both A and B will strike the ground with the same velocity.
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Since a=0 for the horizontal projection, s=R=ut.
Also, the time taken to reach the ground in both cases is expressed as;
t=u/g.
sharon kalunda answered the question on April 24, 2019 at 05:56


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