KinematicsProjectile Motion (KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Physics): Questions 1  2 of 2
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Question number: 1
» Kinematics » Projectile Motion
Appeared in Year: 2012
Question
A firecracker is thrown with velocity of 30 ms^{1} in a direction which makes an angle of 75^{0} with the vertical axis. At some point on its trajectory, the firecracker split into two identical pieces in such a way that one piece falls 27 m far from the shooting point. Assuming that all trajectories are contained in the same plane, how far will the other piece fall from the shooting point? (Take g = 10 ms^{2} and neglect air resistance),
Choices
Choice (4)  Response  

a.  72 m or 99 m 

b.  28 m or 72 m 

c.  63 m or 117 m 

d.  63 m or 144 m 

Question number: 2
» Kinematics » Projectile Motion
Question
The maximum height attained by a projectile is increased by 15 % by increasing its speed of projection, without changing the angle of projection. The percentage increase in the horizontal range will be –
Choices
Choice (4)  Response  

a.  20 % 

b.  10% 

c.  15% 

d.  5% 
