A block of mass m = 2.70 kg is pushed a distance d = 7.50 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle θ = 28.0° 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 on the block by the force of gravity. (d) Determine the work done by the net force on the block.

A block of mass m = 2.50 kg is pushed d = 2.80 m along a frictionless horizontal table by a constant applied force of magnitude F = 15.0 N directed at an angle 8 = 25.0° below the horizontal as shown in the figure below. m (a) Determine the work done by the applied force. (b) Determine the work done by the normal force exerted by the table. (c) Determine the work done by the force of gravity. J (d) Determine the work done by the net force on the block.

A woman pushes a m = 2.00 kg carton a distance d = 6.40 m along the floor by a constant force of magnitude F = 16.0 N directed at an angle 0 = 26.0° below the horizontal as shown in the figure. Assume the floor is frictionless. (Enter your answers in joules.) m (a) Determine the work done on the carton by the applied force (the force on the carton exerted by the woman). J (b) Determine the work done on the carton by the normal force exerted by the floor. J (c) Determine the work done on the carton by the gravitational force. J (d) Determine the work done by the net force on the carton. J

Starting from rest, a 4.3-kg block slides 2.40 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is p, = 0.436. (a) Determine the work done by the force of gravity. (b) Determine the work done by the friction force between block and incline. (c) Determine the work done by the normal force. (d) Qualitatively, how would the answers change if a shorter ramp at steeper angle were used to span the same vertical height?

Starting from rest, a 4.20-kg block slides 3.40 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is  μk = 0.436. (a) Determine the work done by the force of gravity. J(b) Determine the work done by the friction force between block and incline. J(c) Determine the work done by the normal force. J(d) Qualitatively, how would the answers change if a shorter ramp at a steeper angle were used to span the same vertical height?

A sled plus passanger with total mass m=55.5 kg is pulled a distance d=22.2 m across a horizontal, snow-packed surface for which the coefficient of kinetic friction is uk=0.155. The pulling force is constant and makes an angle θ=30.7 degrees above horizontal. The sled moves at constant velocity. a) Write an expression for the work done by the pulling force in terms of m, g (acceleration due to gravity), θ, uk, and d. b) What is the work done by the pulling force, in joules? c) Write an expression for the work done on the sled by friction in terms of m, g (acceleration due to gravity), θ, uk, and d. d) What is the work done on the sled by friciton, in joules? e) The work done by the normal force is _____ and the work done by gravity is _____. (Blanks are either negative, zero, or positive) f) What is the net work, in joules, done on the sled?

A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.44 m/s. The pulling force is 104 N parallel to the incline, which makes an angle of 19.5° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.92 m. (a) How much work is done by the gravitational force on the crate? -152.37 J (b) Determine the increase in internal energy of the crate-incline system owing to friction. 471.0 X A careful free-body diagram of the crate may help you determine the magnitude of the friction force. J (c) How much work is done by the 104-N force on the crate? 511.68 J (d) What is the change in kinetic energy of the crate? 184.95 J (e) What is the speed of the crate after being pulled 4.92 m? 6.47 m/s

A block of mass m = 4.00 kg is pushed a distance d = 2.50 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle θ = 28.0° below the horizontal as shown in the figure below. (a)Determine the work done by the net force on the block.