Home › CBSE Class 11 (Science) › Physics › Motion in a Straight Line › When can a moving object be treated as a point o…
When can a moving object be treated as a point object?
AIts size is far below the distance moved
BIt travels only along a circular path
CIt carries absolutely no mass at all
DIt moves faster than the speed of sound
Answer & Solution
Correct answer: A. Its size is far below the distance moved
The point approximation is fair whenever the object's size is negligible against the distance covered.
Related questions
Which kind of motion did Domingo de Soto in 1545 correctly identify with uniformly accelerA cyclist moving at 10 m/s accelerates uniformly at 2 m/s^2 for 4 s. What is the final speHow many of the five SUVAT variables does each constant-acceleration equation of motion coA scooter starts from rest and reaches 20 m/s with a uniform acceleration of 5 m/s^2. WhatA train speeds up uniformly from 10 m/s to 30 m/s in 10 s. What is its acceleration?A bike moving at 20 m/s brakes with a uniform retardation of 4 m/s^2. How long does it takA car starts from rest and accelerates uniformly at 2 m/s^2 along a straight road. How farA body moves with constant velocity. Its acceleration is