A boy is moving on a straight road against a frictional force of 5 N After traveling a distance of 1...

Question

A boy is moving on a straight road against a frictional force of 5 N. After traveling a distance of 1.5 km he forgot the correct path at a roundabout (Fig. 11.1) of radius 100 m. However, he moves on the circular path for one and a half-cycle, and then he moves forward up to 2.0 km. Calculate the work done by him.

Question 12 Image - Science Exemplar Problems - class 9 chapter Work and Energy

Accepted Answer

Workdone force Displacement Displacement 1500m 200m 200m 1700 Workdone 5 1700 18500 J

NCERT Exemplar Solutions Class 9 Science Solutions for Work and Energy - Exercise in Chapter 11 - Work and Energy