Question

Take a plastic pipe and fix a jet at one of its end connect the pipe to a water tap attached to a large overhead tank.fix a large procector at shown in figure show that you can hold the pipe at different angles ( say at 15°,30°,45°,60°).
hold the pipe in such a manner that jet of water comes out at an angle 15°.
measure the distance up to which water is reaching.
this is the range of the projectile.
now hold the pipe at an angle 30°,45°,and 60°.
measure the range of the projectile in each case.
keep the speed of water comingout of the jet same in each case.
what do you find?
for a given speed, the range is maximum when the angle of projection is 45°.
also try to find out the effect of initial speed of water on the range of projectile. plz as soon as possible to solve this question.