Q4.30Multiple choice
A gun can fire shells with maximum speed v o and the maximum horizontal range that can be achieved is R = vo . q P R T Fig 4.5 If a target farther away by distance ∆x (beyond R) has to be hit with the same gun (Fig 4.5), show that it could be achieved by raising the gun to a height at least h = ∆x 1 + ∆x R (Hint : This problem can be approached in two different ways:
This question refers to a figure in the original PDF.
- (i)Refer to the diagram: target T is at horizontal distance x = R + ∆x and below point of projection y = – h.
- (ii)From point P in the diagram: Projection at speed v o at an angle θ below horizontal with height h and horizontal range ∆x.)