Interested to Buy Any Domain ? << Click Here >> for more details...
When a bicycle is in motion, the force of friction exerted
by the ground on the two wheels is such that it acts
a) In the backward direction on the front wheel and in the
forward direction on the rear wheel.
(b) In the forward direction on the front wheel and in the
backward direction on the rear wheel.
(c) In the backward direction on both the front and rear
wheels.
(d) In the backward direction on both the front and rear
wheels.
- 8 Answers
- 31796 Views
- College School Exams Tests, IIM, IIT, JGK, Wipro, I also Faced
- E-Mail Answers
Answer Posted / girish
Consider a bicycle first. Pedaling the bicycle merely
rotates the back wheel in clockwise sense. The velocity of
point of contact is therefore backwards. Hence, friction
must act forward on the rear wheel.
This frictional force causes a translational acceleration
of the entire bicycle, including the front wheel. The
velocity of point of contact tends to develop in the
forward direction. So friction acts in the backward
direction.
Similar reasoning apply to a car, for the engine merely
rotates the backwheel
| Is This Answer Correct ? | 120 Yes | 20 No |
Post New Answer View All Answers
A certain radioactive element A, has a half life = t seconds. In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly how much?
In the next two or three years what will the important advances in the field be?
How do you find the most recent human sequence data in the data bases inorder to determine physical maps?
What is a homologue?
Integrate 3x + 5 / (x3-x2-x+1)?
What are oesophageal molecular markers?
How to Count number of nucleotide substitutions ?
What is the input and outpit of a distance based algorithm?
what is the principle involved in Biometry?
How to run DOCK 6 using cygwin?
What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?
Is there is best online Training for Bioinformatics
What is computational biology?
What is a DNA array?
Can DeCypher be used for protein struc-ture modeling?
