MENU

A stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 secs

A Stone Falls Freely Under Gravity It Covers Distances H1 Physics Question

A stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 seconds,the next 5 seconds and the next 5 seconds respectively. The relation between h1, h2 and h3 is

Options

(a) h1= h2/3= h3/5
(b) h2= 3h1 and h3 = 3h2
(c) h1= h2= h3
(d) h1= 2h2= 3h3

Correct Answer:

h1= h2/3= h3/5

Explanation:

h = 1/2 gt² h₁ = 1/2 g(5)² = 125
h₁ + h₂ = 1/2 g (10)² = 500
h = 375
h₁ + h₂ + h₃ = 1/2 g (15)² = 1125
h₃ = 625 h₂ = 3h₁, h₃ = 5h₁
or h₁ = h₂ / 3 = h₃ / 5

Related Questions:

  1. A body of mass 0.25 kg is projected with muzzle velocity 100 m/s from a tank
  2. A bomb of mass 30 kg at rest exploded into two pieces of masses 18 kg
  3. Which one of the following equations of motion represents simple harmonic motion?
  4. In atom bomb, the reaction which occurs is
  5. Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass

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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*