1.) emily leaves her physics book of mass 1 kg on the top of the table that is inclined at an angle of 20°. what is the acceleration of the book if the coefficient of kinetic friction between the book and the inclined plane is 0.3
2.) a boy pulls a toy cart of mass 2 kg with a force of 3 n at an angle of 60° with respect to the horizontal road. what is the acceleration produced by the cart?
3.) a man pulls a suitcase of mass 15 kg with a force "f" inclined at an angle of 60° to the horizontal. the frictional force between the floor and the wheels of the suitcase is 10 n. what is the force required to produce an acceleration of 0.1 m/s2 on the suitcase?
4.) the net force on a sailboat is 252 n, while the wind exerts a force of 325 n. what is the water-resistant force acting on the sailboat?
5.) a parachutist of mass 75kg descends with an acceleration of 8 m/s2. what is the upward force exerted by the air on the parachutist?