| ⇦ | 
| ⇨ |
A lift is moving down with acceleration a. A man in the lift drops a ball inside the lift.The acceleration of the ball as observed by the man in the lift and a man standing stationary on the ground are respectively
Options
(a) g,g
(b) g-a,g-a
(c) g-a,g
(d) a,g
Correct Answer:
g-a,g
Explanation:
Acceleration of man in lift a(man) = a
Acceleration of ball ⇒ a(ball) = g
⇒ Relative acceleration
a(rel) = a(base) – a(man) = (g-a)
.·. Acceleration observed by man in lift = g-a
Again for man standing outside a(man) = 0
So, a(relative) = g – 0 = g
.·. Acceleration observed by man standing outside = g
Related Questions:
- The average power dissipated in AC circuit is 2 W. If a current flowing through
- The optical path of a monochromatic light is same if it goes through 4.0 cm
- In the Davisson and Germer experiment, the velocity of electrons emitted from the
- Two parallel long wires carry currents i₁ and i₂ with i₁ > i₂ .
- The equivalent resistance of two resistors connected in series is 6 Ω
Topics: Laws of Motion
(103)
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