Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


0.05/ 0.0214285714285714
0 0 0
please tell its method
but i dont think its sure corect.
yes i it is incorrect because in our book its answer is 132
Circumference of wheel is 15 m. when it makes 7 revolutions, it travels a distance of 15*7=75m. so this distance is covered in 9 seconds.
hence speed of train=75/9 m/s
                             =75*3600/9*1000 km/h
                             =25*1.2 km/h
                             =30 km/h.
1 5 1
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts