In the figure, a 0.24 kg block of cheese lies on the floor of a 960 kg elevator cab that is being pulled upward by a cable through distance d₁ = 3.0 m and then through distance d₂ = 11.6 m. (a) Through d₁, if the normal force on the block from the floor has constant magnitude FN = 3.53 N, how much work is done on the cab by the force from the cable? (b) Through d2, if the work done on the cab by the (constant) force from the cable is 92.23 kJ, what is the magnitude of FN?

In the figure, a 0.24 kg block of cheese lies on the floor of a 960 kg elevator cab that is being pulled upward by a cable through distance d1 = 2.2 m and then through distance d2 = 10.8 m. (a) Through d1, if the normal force on the block from the floor has constant magnitude FN = 3.16 N, how much work is done on the cab by the force from the cable? (b) Through d2, if the work done on the cab by the (constant) force from the cable is 93.33 kJ, what is the magnitude of FN?

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

A 13 N force with a fixed orientation does work on a particle as the particle moves through displacement à = (3î − 5ĵ + 3k) What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +17.0 J and (b)-17.0 J? (a) Number i (b) Number i eTextbook and Media Units Units m.

An airplane flies 200 m at a constant altitude in a direction 30.0° south of east. A wind is blowing that results in a net horizontal force on the plane due to the air of 3.0 N in a direction 30.0° north of west. How much work is done on the plane by the air?

A person pulls a 26 kg package with a cord, on an icy path at constant velocity, on level ground.  The cord makes a 20.0 degree angle with the ground.  If the coefficient of friction between the package and the ground is 0.16, and the package moves for 120 m, (a) find the work done by the tension in the cord, and (b) the work done by the friction.

Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 86.3 kg, down a 68.6° slope at constant speed, as shown in the figure. The coefficient of friction between the sled and the snow is 0.100. W T 60° (a) How much work is done (in J) by friction as the sled moves 30 m along the hill? (b) How much work is done (in J) by the rope on the sled in this distance? J (c) What is the work done (in J) by gravity on the sled? J (d) What is the total work done (in J)? J

The figure gives the acceleration of a 5.0 kg particle as an applied force moves it from rest along an x axis from x-0 tox-9.0 m. The scale of the figure's vertical axis is set by a,- 6.0 m/s². How much work has the force done on the particle when the particle reaches (a) x-4.0 m, (b)x - 7.0 m, and (c) x-9.0 m? What is the particle's speed and direction (give positive answer if the particle moves along x axis in positive direction and negative otherwise) of travel when it reaches (d) x - 4.0 m, (e) x - 7.0 m, and (f)x - 9.0 m? (a) Number i (b) Number i (c) Number i (d) Number i (e) Number i (f) Number i (₂8/) v Units Units Units Units Units Units 2 x (m) < <

A man pushes a m = 4.00 kg bin a distance d = 3.40 m along the floor by a constant force of magnitude F = 16.0N directed at an angle 6 = 30.0° 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 bin by the applied force (the force on the bin exerted by the man). (b) Determine the work done on the bin by the normal force exerted by the floor. (c) Determine the work done on the bin by the gravitational force. (d) Determine the work done by the net force on the bin.