1.) A truck is to be loaded onto a ship by a crane that exerts an upward force of 31kN on the truck. This force, which is strong enough to overcome the gravitational force and keep the truck moving upward, is applied over a distance of 2m. Find (a) the work done on the truck by the crane, (b) the work done on the truck by gravity, and (c) the net work done on the truck. 2.) During your winter break you enter a "dogsled" race across a frozen lake. This is a race where each sled is pulled by a person, not by dogs. To get started you pull the sled (total mass 80kg) with a force of 180N at 40° above the horizontal. Find (a) the work you do, and (b) the final speed of the sled after it moves Ax = 5m assuming that it starts from rest and there is no friction 3.) A small motor is used to operate a lift that raises a load of bricks weighing 500N to a height of 10m in 20s at constant speed. The lift weighs 300N. What is the power output of the motor?

Show your step by step solutions. 6. With a wooden ruler, you measure the length of a rectangular piece of sheet metal to be 16 mm. With micrometer calipers, you measure the width of the rectangle to be 5.98 mm. Consider 4 significant figures only. Determine: (a) the area of the rectangle; (b) the ratio of the rectangle's width to its length; (c) the perimeter of the rectangle;

Please give the answers of c d step by step

Can you please answer number 5 and all of the sub problems and show all of the steps