Sarthaks Test
0 votes
in Physics by (8.6k points)

A gun can fire shells with maximum speed vo and the maximum horizontal range that can be achieved is R = vo2

If a target farther away by distance Dx (beyond R) has to be hit with the same gun (Fig 4.5), show that it could be achieved by raising the gun t o a height a t least 

h = Δx [1 + Δx/R]

1 Answer

0 votes
by (13.6k points)
selected by
Best answer

(Hint : This problem can be approached in two different ways:

(i) Refer to the diagram: target T is at horizontal distance x = R + Δx and below point of projection y = – h.

(ii) From point P in the diagram: Projection at speed vo at an angle θ below horizontal with height h and horizontal range Δx.)

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.