Now Lets take horizontal component of velocity which remains constant
(as the gravity is vertical)
Thus in time t the distance travelled
Now look the distance travelled horizontally is known as Downrange
Can you go ahead
a projectile is fired at a speed of 840 m/sec at an angle of 60 degree. how long will it take to get 21km downrange?
here is what i did an its no where close to right. the answer was 50seconds i got no ideal how to get that. here is what i attempted to do.
-Now The term is the value of velocity in the y direction(vertical direction)
-similarly is the value of velocity in the x(horizontal) direction
-Now the velocity in x direction remains constant and its value in y direction is affected by acceleration
- Since we were given
+the value of velocity
+ the value of alpha
+ the horizontal distance covered (distance travelled by ONLY)
-We can use the general formula that
Watch the diagram and this link