| ⇦ | 
| ⇨ |
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: - The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
- An aeroplane is flying horizontally with a velocity of 216 km/h at a height of 1960 m.
- Radioactivity of a sample at T₁ time is R₁ and at time T₂ is R₂. If half-life
- A nucleus at rest splits into two nuclear parts having radii in the ratio 1:2.
- If the ratio of amplitude of two superposed waves is 2:1, then the ratio of maximum
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
- An aeroplane is flying horizontally with a velocity of 216 km/h at a height of 1960 m.
- Radioactivity of a sample at T₁ time is R₁ and at time T₂ is R₂. If half-life
- A nucleus at rest splits into two nuclear parts having radii in the ratio 1:2.
- If the ratio of amplitude of two superposed waves is 2:1, then the ratio of maximum
Topics: Motion in Straight Line (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply