Can I some help for those question and explain them

7 Gayle is pushing a lawn spreader across her lawn. Can she increase the horizontal com- ponent of the force without changing the force that she is applying to the spreader handle? Explain. B Rachel pulls her 18-kg suitcase at a constant speed by pulling on a handle that makes an Hint: F ( angle 0 with the horizontal. The frictional force on the suitcase is 27 N and Rachel exerts a 43-N force on the handle. a. What angle does the handle make with the 2. Hint: The horizontal? b. What is the normal force exerted on the of suitcase? You are holding an 85 kg trunk at the top of a ramp that slopes from a moving van to the ground, making an angle of 35 with the ground. You lose your grip and the trunk begins to slide. (a) If the coefficient of friction between the trunk and the ramp is 0.42, what is the acceleration of the trunk? (b) If the trunk slides 1.3 m before reaching the bottom of the ramp, for what time interval did it slide? A plastic recycling container filled with paper, making a total of 55 kg, is sitting on a ramp that makes an angle of 33 with the horizontal. If the coefficient of kinetic friction is 0.23, with what applied force directly up the ramp would you have to push to keep the container sliding up the ramp at a constant velocity?Two dogs pull on a toy. One pulls with a force of 10 N, the other with a force of 15 N. a. In what relative directions can the dogs act to give the toy the smallest acceleration? b. Can they ever result in zero acceleration? A student puts two objects on a physics book and carefully tilts the cover. At a small angle, one object starts to slide. At a large angle, the other begins to slide. Which has the greater coefficient of static friction? W A 0.30 kg lab cart is observed to accelerate twice as fast as a 0.60 kg cart. Does that mean that the net force on the more massive cart is twice as large as the force on the smaller cart? Explain. 4. An object in equilibrium has three forces ex- erted on it. A 33-N force acts at 90, and a 44-N force acts at 60. What is the magnitude and direction of the third force? Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The rope makes an angle of 60.0 with the horizontal. Beth ex- erts a force of 125 N on the rope. What is the magnitude of the upward component of the force acting on the stake? 6. Joe pushes on the handle of a 10-kg lawn spreader. The handle makes a 450 angle with the horizontal. Joe wishes to accelerate the spreader from rest to 1.39 m/s in 1.5 s. What force must Joe apply to the handle? Neglect friction. over