Dot Product:
DP-1
A 7.50kg box is pushed 1.70m along a frictionless horizontal table top by a constant force directed θ below as shown to the right. The work done by P is 25.0J. Find the angle 0 between the force P and the horizontal.

A 7.50kg box is pushed 1.70m along a frictionless horizontal table top by a constant force directed θ below as shown to the right
A 7.50kg box is pushed 1.70m along a frictionless horizontal table top by a constant force directed 25.0° below as shown to the right. a) Draw the free body diagram for the box. Neglect air resistance.b) Find the work done by each force on the box. c) Find the net work done on the box (by all of the Ax 1.70m forces)
A block of mass 2.50 kg is pushed 2.20 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. Determine the work done by the applied force. (a) 51.9 J (b) 19.9 J (c) 93.4J (d) 31.4J (e) 1.19J
4. A box of mass m 56.0 kg is pushed along a horizontal floor (frictionless floor) a distance d 2.50 m. The constant force exerted on the box makes an angle of 27.0° directed below the horizontal. If the work done by the mover is W 200J, find exerted force? 89.8 N a. b. 549 N 616 N C. d. 176 N?
A block of mass m 3.90 kg is pushed a distance d = 5.90 m along a frictionless, horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle θ = 30.0° below the horizontal as shown in the figure below. (a) Determine the work done on the block by the applied force (b) Determine the work done on the block by the normal force exerted by the table. c) Determine the work done...
A 7.50kg box is lifted from the ground straight up a distance of 2.40m with a constant speed by lifting force L as shown to the right. a) Draw the free body diagram for the box. Ay 2.40m 7.5 Neglect air resistance. b) Find the lifting force L. c) Find the work done by each force on the box. d) Find the net work done on the box (by all of the forces)
10. A 6.0kg block is pushed 1.2m along a frictionless table. A 24N force is applied directed 15◦ below the horizontal. a. What is the work done on the block by the 24N applied force? b. What is the work done on the block by the normal force? c. What is the work done on the block by the gravitational force? d. What is the net work done on the block? I have the answers. I Really need to see...
A crate of mass M is pushed horizontally forward along a table (not frictionless) at constant speed, by a pushing force Fp, that acts at an angle 0 below horizontal. a) Draw in all other forces acting on the crate. Label what each force is. b.) What is the net force on the crate? Explain conceptually. c.) Find an expression for the normal force acting on the crate (Express in terms of the given variables M, FP θ and/or g...
A 90.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 43.0 deg with the horizontal. Find the magnitude of the applied force F.
DP-2 A force F-4Ni-3Nj is applied to a box that is displaced AS-7mi+-2mj while moving along a ramp as shown to the right. Keep 3 significant figures in all answers. a) Find the work done by the force F for this displacement AS using the dot product of the unit vectors FANANj b) Find the magnitude of F and of AS. c) Find the angle 0 between F and the ramp.
13) A block of mass 2.0 Ag is pushed 2.5 m along a frictionless horizontal table by a constant 1o N force directed 28° above the horizontal. The work done on the block by the applied force is. A) 25.0J B) 11.7J C22.0J D) zero What is the total 14) A 0.5 Ag particle has a speed of 4.0 m/s at point A and 6.0 m/s at point B. work done on the particle as it moves from A to...