A 69-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.4 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.  m

A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.5 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar. m

A 150-g particle on the inside of a smooth hemispherical bowl of radius R 35.0 cm (see the figure below) is released from point A at rest. Its speed at B is 1,10 m/s. (a) What is its kinetic esergy at B? T h (b) How much mechanical energy is lost as a result of friction as the particle goes from A to B2 (c) Is it possible to determine u from these results in a simple manner? O Yes O No Explain. ..

A 50-kg skier with an initial speed of 13 m/s coasts up a 2.5-m-high rise as shown in the figure. The coefficient of friction between her skis and the snow is 0.09.   (d) Find her final speed at the top.

A 58-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.4 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar. ____m

A 41-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.5 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.                                 m

6. Determine the approximate work rate (in Mets) for running on a treadmill at a speed of 5.0 mph and a 4% grade elevation. What is the total caloric cost (kcal) for 190 lb man exercising for 30 minutes at this workrate?

2m Using this force, calculate how much work Slim Jim does to lift the object. Force of weight =mg w= f (d) O 58.8 J 6 J 29.4J 1.5J

Problem 4: Energy that is not utilized for work or heat transfer in the human body is converted to the chemical energy of body fat, which contains about 39 kJ/g. How many grams of fat will you gain if you eat 2650 kcal one day and do nothing but sit relaxed for 16.0 h and sleep for the other 8.00 h? (Assume sleeping burns 1.2 kcal/min, while sitting relaxed burns 1.7 kcal/min.) mfat =

A 27.0 kg child slides down a long slide in a playground. She starts from rest at a height h11 of 23.00 m. When she is partway down the slide, at a height h22 of 13.00 m, she is moving at a speed of 6.80 m/s.Calculate the mechanical energy lost due to friction (as heat, etc.).