A 1400-NN crate rests on the floor. How much work is required to move it at constant speed 5.0 mm vertically. Express your answer to two significant figures and include the appropriate units.

The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the force doing the work in this problem is the tension in the cable. A rescue helicopter lifts a 90.5-kg person straight up by means of a cable. The person has an upward acceleration of 0.512 m/s2 and is lifted from rest through a distance of 8.89 m. (a) What is the tension in the cable? How much work is done by (b) the tension in the cable and (c) the person's weight? (d) Use the work-energy theorem and find the final speed of the person.

Please show me how to work this. Don't round any figures please.

please help me with this

Multiple-Concept Example 13 presents useful background for this problem. The cheetah is one of the fastest accelerating animals, for it can go from rest to 31.8 m/s in 3.38 s. If its mass is 119 kg, determine the average power developed by the cheetah during the acceleration phase of its motion. Express your answer in (a) watts and (b) horsepower. (a) Number i (b) Number Units Units

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A7.1 kg body is at rest on a frictionless horizontal air track when a constant horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is shown in the figure. The force F is applied to the body at t = 0, and the graph records the position of the body at 0.50 s intervals. How much work is done on the body by the applied force F between t = 0 and t = 1.2 s? 0.5 s 1.0 s 1.5 s 2.0 s 0.2 (0.4 0.6 0.8 х (m) Number Units

A 80 gg particle is moving to the left at 29 m/sm/s . How much net work must be done on the particle to cause it to move to the right at 31 m/sm/s ? Express your answer to two significant figures and include the appropriate units.

Question 3

It takes a force of 10.0 N to compress a certain spring by 0.2 m. How much work does it take to stretch the spring 0.4 m? Express your answer as a number only with no decimal places. Omit the unit on your answer