Answered

Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Join our platform to connect with experts ready to provide precise answers to your questions in various areas. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

A boy of mass 40kg slides from rest down a straight slide of length 5m. The slide is inclined to the horizontal at an angle of 20°. The coefficient of friction between the boy and the slide is 0.1. By modelling the boy as a particle, find: 
a) the acceleration of the boy, 
b) the speed of the boy at the bottom of the slide.

Sagot :

Hopefully all of that makes sense, just comment if it doesn't. For what the question asks, the mass is irrelevant, as it cancels out, so I just left it as "m" for simplicity. "g" refers to the acceleration of freefall, I used 9.81, but you might have to do the final calculations again, depending on the level of accuracy you need. Hope this helps.
View image pbc147
We hope our answers were useful. Return anytime for more information and answers to any other questions you have. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.