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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 7.00-kg package slides 2.50 m down a long ramp that is inclined at 24.0  below the horizontal. The coefficient of kinetic friction between the package and the ramp is μk = 0.370. Calculate the work done on the package by friction. Calculate the work done on the package by gravity. Calculate the work done on the package by the normal force. Calculate the total work done on the package. If the package has a speed of 2.40 m/s at the top of the ramp, what is its speed after it has slid 2.50 m down the ramp?

A block of mass m = 3.75 kg is pushed a distance d = 5.55 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle = 34.0° below the horizontal as shown in the figure below. m (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 = 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.

A cable exerts a constant upward tension of magnitude 1.54 ✕ 104 N on a 1.20 ✕ 103 kg elevator as it rises through a vertical distance of 3.10 m. HINT (a) Find the work done by the tension force on the elevator (in J).  J (b) Find the work done by the force of gravity on the elevator (in J).  J