Forces

Q: Acceleration of 1.5 m sec-2 expressed in km hr-2 is :

(a) :  324
(b) :  5.4
(c) :  5400
(d) :  19440
(e) :  None of the Above
Answer:  19440
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: All along the trajectory of projectile

(a) :  Vx remain constant but Vy varies
(b) :  Vy remain constant but Vx varies
(c) :  Both components remain sconstant
(d) :  None of the above
(e) :  None of the Above
Answer:  Vx remain constant but Vy varies
Explanation:  

Q: The velocity of the Projectile is maximum

(a) :  At half the height
(b) :  At the highest point
(c) :  At landing point
(d) :  None of these
(e) :  None of the Above
Answer:  At landing point
Explanation:  

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