IndiaBIX

General Knowledge - Physics - Discussion

Discussion Forum : Physics - Section 1 (Q.No. 2)
Physics
2.
It is easier to roll a stone up a sloping road than to lift it vertical upwards because
work done in rolling is more than in lifting
work done in lifting the stone is equal to rolling it
work done in both is same but the rate of doing work is less in rolling
work done in rolling a stone is less than in lifting it
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
84 comments Page 9 of 9.
Jennifer said:   1 decade ago
This is practical. When lifting an object gravity takes more place than when rolling.
Hassan tukur said:   1 decade ago
On my way becouse in the throwing the stone gravitational force oppose the motion but in rolling it on the ground there is no gravitational force opposing the motion.
DEBBRATA GHOSH said:   1 decade ago
I Know that When a Stone rolling, in that time friction Worked but its quantity not more than gravitational force. That caused option D is right.
Mehak said:   1 decade ago
Because in lifting a ball work done is against gravity and so large effort is to be applied than to roll it.
Post your comments here:

Your comments will be displayed after verification.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers