0

Guest

Courses New

A large rock sits on your toe. Which of the concepts is most important in determining how much it hurts.? (A) The mass of the rock. (B) The weight of the rock. (C) Both the mass and the weight of the rock are important. (D) Either the mass or thee weight , as the two are related by a single multiplicative constant g.

A large rock sits on your toe. Which of the concepts is most important in determining how much it hurts.?
(A) The mass of the rock.
(B) The weight of the rock.
(C) Both the mass and the weight of the rock are important.
(D) Either the mass or thee weight , as the two are related by a single multiplicative    constant g.

Grade:upto college level

1 Answers

Deepak Patra
askIITians Faculty 471 Points
8 years ago
The correct option is (C) Both the mass and the weight of the rock are important.
We have to measure the force acting on our toe due to rock.
The downward force of Earth’s gravity acting on the rock is called the weight of the rock. Therefore weight is the gravitational force on the rock due to the earth. Weight of the rock (W) is equal to the mass of the rock times (m) acceleration due to gravity at the surface of earth (g).
So, W = mg
Also force is the rate of change of momentum. Therefore the region where there is no gravity (g = 0), the contact force between two bodies will totally depend upon their masses.
Thus, if a large rock sits on our toe, both the mass and weight of the rock are important in determining how much it hurts.
From the above observation we conclude that, option (C) is correct.

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More