Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • A bicyclist comes to a skidding stop in 10 m. During this process, the force on the bicyclist due to the road is 200 N and is directly opposed to the motion. The work done by the cycle on the road is a) +2000 J

A bicyclist comes to a skidding stop in 10 m. During this process, the force on the bicyclist due to the road is 200 N and is directly opposed to the motion. The work done by the cycle on the road is

a) +2000 J

b) -200 J

c) zero

d) -20,000 J

Answers (1)

The answer is the option (c) Zero

Mechanical energy is not conserved here due to the presence of frictional forces. These lead to dissipation of energy. Work done by frictional force= 200 \times -10 = -2000 J. Work done by the cycle on the road is zero as the road does not move and cover the distance.

Posted by

infoexpert24

View full answer

Similar Questions

Latest Question