A5.0-kg box rests on a horizontal surface. the coefficient of kinetic friction between the box and surface is μk=0.50. a horizontal force pulls the box at constant velocity for 10 cm. find the work done by (a) the applied horizontal force, (b) the frictional force, and (c) the net force.

Ineed the answer to question 1 , i’m desperate

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?