Forces

Q: Vertical component of velocity of the projectile at any instant t is given by

(a) :  v₁ cosθ
(b) :  v₁ cosθ-gt
(c) :  v₁ sinθ-gt
(d) :  v₁ sinθ+gt
(e) :  None of the Above
Answer:  v₁ sinθ-gt
Explanation:  

Q: The vertical component of acceleration in the second half of a projectile motion

(a) :  Has no relation with g
(b) :  Is equal to g
(c) :  Is more than g
(d) :  Is less than g
(e) :  None of the Above
Answer:  Is equal to g
Explanation:  

Q: The horizontal range R and maximum range R max of a projectile are related as

(a) :  R = R max Sin²θ
(b) :  R = R max Sinθ
(c) :  R = R max Sin2θ
(d) :  2R = R max Sin²θ
(e) :  None of the Above
Answer:  R = R max Sin2θ
Explanation:  

Q: The horizontal range of a projectile depends upon

(a) :  Initial Velocity
(b) :  Angle of Projection
(c) :  Value of g
(d) :  All of them
(e) :  None of the Above
Answer:  All of them
Explanation:  

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