Tutorial 2 - Rock Climbing Rescue

Are you as strong as a horse? Purpose: To understand the concept of work and power and to calculate the power generated by yourself or a friend. Materials: A tape measure, stairs, and a stopwatch, cell phone, or wristwatch. Key Physics Concept: Power is the rate of doing work. Power can be calculated by dividing the work done by the time it takes to do the work; in this case we will do work against gravity on a stair case (you may add your power in doing pushups to test your arm power). Can you guess what your peak horsepower is? You may do the stairs one at at time or multiple stairs at a a time; whatever is most safe and efficient for you. Procedure: Observations: Analysis: Conclusions: Application: 1. Will your hp change if you performed the activity for a longer duration (for example, climbed the CN tower staircase)? In what way? Explain. 2. Research the horsepower generated by a car. How does the average person's peak power rating compare to it? How many average people would it…

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Jack and Jill are both helping to fetch a pail of water in a hill that is 16 meters high. Each of them carries 5 liters of water in a bucket, but Jill finished her chore in 1 hour while Jack requires 1.5 hours to complete his part.Who does more work, or do they both do the same amount? Who has more power?

Description Solve the following problems following the correct procedure; be sure to show the equations used to solve the problem, a diagram, a list of known and unknown variables, as well as the units of the answer. Beware of units and the sign of the answer (assume upward is positive). When solving the problems follow the FIA format (Formula - Input – Answer). Write you name at the top of every page submitted. Question: Homer Hickam is launching rockets upward from the ground with an initial upward velocity of 15.5 m/s. (Assume in Free Fall)

You must have to draw the free body diagram. Please don't make any mistakes. I will rate as soon as i receive the solution. (Strictly don't use chatgpt)

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1. Joe is moving his refrigerator to take to college and he begins by pushing it across the wooden kitchen floor. On a flat surface like the floor, how do you calculate how hard he needs to push? Draw a free body diagram (on paper) to help explain your answer and use the simulation Ramp: Force and Motion to check your ideas. Record the minimum force Joe would have to use to move the refrigerator on the kitchen floor. 2. Later, Joe is ready to load his refrigerator onto the moving truck. a. Explain how he would calculate how much force to use to lift the refrigerator straight up into a truck. b. Joe starts thinking about easier ways to get it in the truck and remembers he has some wood that he could use to make a ramp. How could he calculate the minimum force needed to push it up the ramp? 10.0° c. Use the simulation to check your ideas by running experiments with different objects at several angles. Make a data table including several trials with the calculations.

I need to lift a large engine block but at my age, I can only create 160lbs of force. I will build a lever to assist me. The fulcrum is placed 1.5 ft away from the 575lb block. How far away will i need to be from the fulcrum to achieve movement of the block?

A student struggled with his first midterm exam and is slightly angry. For this reason he drops a 10 kg object on the good teacher from a height of 5 m. When seeing the object fall to the ground, the teacher asks the logical question: How much will the internal energy of the box have increased after hitting the ground? If the specific heat of the box is cp = 3 kJ / kg.K How much will the temperature of the box have increased?

If the mass of the hanging-mass is increased and the mass of the cart remains the same, how would the steepness of the position versus t2 be affected? The best-fit line would decrease in steepness.The best-fit line would increase in steepness.    Impossible to determine because the net force is not a part of the position vs t2 graph.There would be no change in steepness.

Josh and Jake are both helping to build a brick wall which is 6 meters in height. They lay 250 bricks each, but Josh finishes this task in three (3) hours while Jake requires 4.5 hours to complete his part. select the BEST response below: Jake does more work than Josh O Josh does more work than Jake Both Josh and Jake do the same amo O of work and have the same amount of power Both Josh and Jake does the same O amount of work, however, Josh has m power than Jake.

Question 2 You want to move a hay bale to the top of a hill using a forklift. Find the minimum tractive force, P, between the tires and the ground that is required to move the hay bale. The mass of the bale is 1200 kg. Assume u, = 0.4 between the bale and the ground and between the bale and the vertical forklift platform. 30° P = 22.1 kN

1. In general, what pattern do you notice between the force due to the gravity of the masses and the displacement of the spring? 2. What is the physical meaning of the slope? 3. Using the slope for each spring, what would be the force required to stretch the spring 0.10 m? 4. Using the slope for each spring, what would be the amount of stretch with a 500 g mass hanging on the spring? Ps: pls refer to the graph below

all one question help asap please!

Trina is a gym goer with a leg length of 84 cm. Suppose that she is in the gym doing straight leg raising with 10 Ib weights. Compute for the force that the muscle should exert in order to (1) maintain it in the position and (2) lift the weight up given that the distance of the effort (muscle) from the joint is 54 cm, distance of the weight is 80 cm, and the COM is 45 cm from the joint. Questions: 1. Draw the free body diagram for straight leg raise. 2. What is the muscle responsible for straight leg raise? 3. What is the fulcrum? 4. What is the effort? 5. What is the resistance?

A car is hanging over a hole, supported by a rope tied to the ceiling and a person pulling the rope. How much force is exerted by the person in the configuration below, given the car weighs 3500 lbs? ** å 30° 则

2. Two friends are sliding 360 kg crate across the floor. One worker pushes horizontally forward on the crate with a force of 440 N while the other pulls forward on a connected rope with 220 N at an angle 25 degrees above horizontal. The crate slides with a constant speed. a) Draw a free body diagram of all forces acting on the crate. Clearly label the forces and define the labels. b) Sum the forces, applying Newton's second law.