A kid is on a stationary sled, on snowy ground with Us=.105, It takes 71.2 N of force to set the sled moving. How much normal force is acting?

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.