There are two questions one attached and one written thanks.

1) Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it contains gears to count the number of wheel revolutionsit then calculates the distance traveled. If the wheel has a 1.04 m diameter and goes through 180,000 rotations, how many kilometers should the odometer read? (Enter a number.)

km

A contestant in a winter games event pushes a 58.0 kg block of ice across a frozen lake as shown in the figure below. The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. (For each answer, enter a number.) (a) Calculate the minimum force F (in N) he must exert to get the block moving. N (b) What is its acceleration (in m/s ) once it starts to move, if that force is maintained? m/s2