AP EAMCET202021 Sep 2020Morning ShiftPhysicsMotion in Two DimensionsActual
A shot is fired from a point at a distance of (200 ~m ), from the foot of a tower (100 ~m ) high, so that it just passes over it. The direction of shot with respect to the horizontal is
Options
- A(30^ )
- B(60^ )
- C(70^ )
- D(45^ )
Correct answer
D. (45^ )
Step-by-step solution
According to question, the given situation is shown in the figure. Here, range, (R=200+200=400 ~m ) Maximum height, (H=100 ~m ) If ( ) be the direction of shot with respect to horizontal, then ( aligned & R= u^2 2 g and H= u^2 ^2 2 g & R H = u^2 2 g u^2 ^2 2 g & 400 100 = 2 2 ^2 & 4= 2 2 ^2 [ 2 =2 ] & 1= & 45^ = & 45^ = & =45^ aligned )