Welcome to Westonci.ca, where finding answers to your questions is made simple by our community of experts. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

3. The brakes on a 20 kg cart are locked so that the rubber wheels cannot turn. A child
pushes horizontally to the right on the cart until it just begins to slide. The maximum
horizontal force he applies is 150,N. After that the child is able to keep the cart sliding
with a horizontal force of 80 N.
3.1 Define a normal force.
3.2 Explain the difference between static and kinetic friction.
3.3 Calculate the coefficients of static and kinetic friction between the rubber wheels
and the ground

(2)
(2)