1Why is a sloping plank used when loading goods onto a truck and unloading them from it?
2Which is easier to climb, a very steep ladder or one that leans more gently, and why?
3What is the advantage of a winding mountain road?
4What is an inclined plane? What are its special forms?
5How is the velocity ratio of a fully driven wedge worked out?
6An inclined plane used in the activity is 300 cm long and 60 cm high. What is its velocity ratio?
7Find the velocity ratio of a screw whose head has a radius of 7 cm and whose pitch is 0.5 cm.
8Why does a screw with a smaller pitch make the work easier?