Motion in a Plane - Result Question 32

35. A missile is fired for maximum range with an initial velocity of 20m/s. If g=10m/s2, the range of the missile is

(a) 40m

(b) 50m

(c) 60m

(d) 20m

[2011]

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Answer:

Correct Answer: 35. (a)

Solution:

  1. (a) For maximum range, the angle of projection, θ=45.

R=u2sin2θg

=(20)2sin(2×45)10=400×110=40.



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