Kinematics-Projectile Motion (KVPY Stream-SA (Class 11) Physics): Questions 1 - 2 of 2

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Question number: 1

» Kinematics » Projectile Motion

Appeared in Year: 2012

MCQ▾

Question

A firecracker is thrown with velocity of 30 ms-1 in a direction which makes an angle of 750 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

MCQ▾

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%

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