If a 446 Newton force causes a motorcycle to accelerate at a rate of 2.42 ms2, what is the total mass of the motorcycle? Grayson is pushing a box across the floor. If the box has a mass of 68.0 kg, and the force of friction is 91.5 N, how much force will Grayson need to exert to accelerate the box at a rate of 1.41 ms2? Two piano movers are bringing a piano into a home. One mover pushes to the right with a force of 310 N, while the other pulls to the right as well, but with a force of 270 N. The force of friction acts to the left, with a magnitude of 190 N. The piano weighs 2500 N. What is the net force on the piano? A 1295 kg car is driving down the road at a constant speed of 24.4 m/s. The engine exerts a 1450 N force northward, what is the sum of all southward forces exerted on the car? A 1.15 kg book is at rest on the table. What is the magnitude of the normal force that the table is exerting on the book? Shelley is in an elevator that is traveling downward and slowing down at a rate of 0.950 ms2. If Shelley has a mass of 73.2 kg, what is her apparent weight during this period? Jonas has a 10.0 kg box, which he places on a scale inside an elevator. When the elevator begins to move, the scale shows that the box weighs 83.4 N. What is the magnitude and direction of the elevator’s acceleration? Kelley and Raul are moving a 95 kg desk to the right. If the coefficient of friction between the desk and the floor is 0.29, what is the force of friction that will oppose the motion of the desk? Bina is pushing a box filled with winter clothing into the closet. The box has a mass of 11.4 kg, and when she pushes with a force of 25.9 N, it accelerates at a rate of 0.84 ms2. Based on these values, what is the coefficient of friction between the box and the floor of the closet? A team of movers are unloading a truck. One of the movers stays in the truck and places the boxes on a ramp, so they slide down to the other members of the team. One box has a mass of 34.9 kg. The mover places the box on the ramp, which sho your work