| ⇦ | 
| ⇨ |
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: - Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.
- The distance of the closest approach of an alpha particle fired at a nucleus
- Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted
- A capacitor is used to store 24 watt hour of energy at 1200 volt.
- A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.
- The distance of the closest approach of an alpha particle fired at a nucleus
- Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted
- A capacitor is used to store 24 watt hour of energy at 1200 volt.
- A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
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