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1. A cable attached to a helicopter is used to vertically lift a 2650-kilogram elephant at...

1. A cable attached to a helicopter is used to vertically lift a 2650-kilogram elephant at a constant velocity of 0.8 m/s. Draw a free-body diagram for the elephant. Label all forces acting on the elephant. Determine the size of each force that is acting on the elephant.

2. A landscaper pushes a 64 kg wheelbarrow due east at a constant velocity of 1.15 m/s. The opposing frictional force is -12.5 kgm/s^2. What are the forces acting on the wheelbarrow and what are the size of those forces?

3. A construction crane lifts a 275 kg I-beam with a constant acceleration of 1.1 m/s^2. Determine how much force the care applies to the load?

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