| ⇦ | 
| ⇨ |
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 order of the electric field near the earth’s surface is
- A total charge of 5µC is distributed uniformly on the surface of the thin walled
- A ball is dropped from a high rise platform at t = 0 starting from rest
- A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
- Two particles of masses m₁ m₂ move with initial velocities u₁ and u₂
Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The order of the electric field near the earth’s surface is
- A total charge of 5µC is distributed uniformly on the surface of the thin walled
- A ball is dropped from a high rise platform at t = 0 starting from rest
- A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
- Two particles of masses m₁ m₂ move with initial velocities u₁ and u₂
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