Question

maximum height of a bullet when fired at 60 with horizontal is 33m then height when it is fired at angle 30 is​

Answer 1

Answer:

Maximum height is given by, H=u² sin²/2g

where u is inital speed of projectile, is angle Mady by speed of projectile with horizontal.

given,H=11m,=30⁰

then,11=u² sin² 30⁰/2g

or, 22g/ sin² 30⁰=22g/(1/2)²=u²

or ,u²=22g*4=88g....(1)

given,=60⁰

and want to find maximum height of bullet.

so,H=u² sin²/2g

from equation (1)

H=(88g*sin²60⁰)/2g

=88g * (3/4)/2g

=33m

hence maximum height when bullet is fired at angle of 60⁰is 33m.