Q. 385.0( 3 Votes )

# A projectile is thrown with initial velocity ms^{–1}. If the range is twice the maximum height then what will be the ans and how?

Answer :

Given:

Let, angle made by with X axis = θ

θ is also known as the angle of projection

...(1)

also, R = range of Projectile

...(2)

H = Maximum height of the projectile

...(3)

Equation we get

Also, from (1)

So, b = 2a

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PREVIOUSA blind person after walking 10 steps in one direction each of length 80cm turns randomly to the left or to the right by 90°. After walking a total 40 steps the maximum possible displacement of person from his starting position could be(a) 320 m(b) 2.32 m(c) (d) 16√2 mNEXTA projectile has the same range R when the maximum height attained by it either H1 or H2. Find relationship between R, H1 and H2.

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