Question

A motor cyclist ( to be treated as a point mass) is to undertake horizontal circles inside the cylindrical wall of a well of inner radius 8m find the coefficient of static friction between the tyres and the well. When the minimum speed to perform this stunt is 12m/s (use g = 10 m/s²)

Answer 1

v min rg s

4 100 410 1. m s and nr

min/min rev

v 2

10

2 4

0 4 1