Motion in a Plane - Result Question 38

41. The maximum range of a gun of horizontal terrain is 16km. If g=10ms2, then muzzle velocity of a shell must be

[1990]

(a) 160ms1

(b) 2002ms1

(c) 400ms1

(d) 800ms1

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Answer:

Correct Answer: 41. (c)

Solution:

  1. (c) Rmax=v2g=16000[16km=16000m] or v=(16000g)1/2=(16000×10)1/2=400ms1


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