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Two balls are dropped from same height at 1 second interval of time. The seperation between the two balls after 3 second of the drop of the 1st ball is
Options
(a) 50 m
(b) 40 m
(c) 35 m
(d) 25 m
Correct Answer:
25 m
Explanation:
For the motion of ball is, u=0, a=g, t = 3s.
Using the kinematic equation S=ut+1/2 at².
Let S₁ is the distance covered by the first ball in 3 sec.
.·. S₁=0+1/2x10x(3)²=45 m
Let S₂ is the distance covered by the second ball is 2 sec.
.·. S₂=0+1/2x10x(2)²=20 m
Separation between the two ball is = S₁-S₂
= 45-20 = 25 m .
Related Questions: - A body is placed in an insulating container at temperature 227⁰C.
- The decay constant of a radio isotope is λ. If A₁ and A₂ are its activities at time
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
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Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body is placed in an insulating container at temperature 227⁰C.
- The decay constant of a radio isotope is λ. If A₁ and A₂ are its activities at time
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
- Consider the following two statements about Kirchhoff’s law
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
Topics: Motion in Straight Line (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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