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

Q: For saving energy, bicycling and walking are far more efficient means of transportation than is…

A: a. the energy consumption by the person in walking is

Q: A pole vaulter wishes to clear a 4-m bar. How fast must she run? (Assume that all her kinetic energy…

A:

Q: A 2.12-kg rock is released from rest at a height of 18.7 m. Ignore air resistance and determine (a)…

A: Given Data: The mass of a rock is, m=2.12 kg The height of fall is, h=18.7 m The initial velocity of…

Q: A sled of a mass 30.0 kg is given a kick on a frozen pond,imparting to it an initial speed v…

A: Given Data: The mass is, m = 30.0 kg. The initial speed is, u = 4.0 m/s. The coefficient of kinetic…

Q: A 67-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is…

A: Consider an athlete having mass m running with an initial velocity vi, jumps to reach a height h and…

Q: A 2.48-kg rock is released from rest at a height of 17.2 m. Ignore air resistance and determine (a)…

A: a) At the releasing point 17.2 m, only potential energy exists. Thus, the kinetic energy, KE=0 b)…

Q: thermal energy due to friction

A:

Q: A skier starts at the top of a hill with 100J of potential energy. At the bottom of the hill, she…

A: Solution- Work must have been done. Explanation- from work energy theorem work done is equal to…

Q: A skier starts at the top of a hill with 100J of potential energy. At the bottom of the hill, she…

A: At the bottom of hill Skier has only kinetic energy and no potential energy. But at the Top of hill…

Q: A girl weighing 470 N hangs suspended on the end of a rope 8 m long. What will be her gain in…

A:

Q: A 54-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is…

A: Given:- mplayer= 50 kg vi= 10 m/s vf= 1.0 m/s yi= 0 m

Q: At the top of a 17.88 m high ski slope, you start with a speed of 17.9 m/s and head down the hill.…

A:

Q: Ms. Crimi, Ms. Barone and Ms. Weisenseel all go hiking together at Bear Mountain. Ms. Crimi hikes a…

A: Given: The height of the mountain summit is 5000 m. Introduction: The gravitational potential energy…

Q: A 1500 kg roller coaster (including riders) starts from rest at a height of 25 m. It goes down a…

A: Since you have posted a question with multiple subpart, we have solved first three only. Please…

Q: Assume g= 9.8 m/s² near the surface of the Earth. 1) Climbing a vertical rope is difficult. You have…

A:

Q: A 240-kg roller coaster reaches the top of the steepest hill with a speed of 5.60 km/h. It then…

A:

Q: A basketball of mass 0.400 kg is dropped from a height of 5.00 m to the ground and bounces back to a…

A: (a) Take the ground to be at zero potential energy. The potential energy lost on the way down is…

Q: A basketball of mass 0.0400 kg is dropped from a height of 5.00 m to the ground and bounces back to…

A: The potential energy is given by  U = m g h  where, m is the mass, g is the gravity and h is the…

Q: a.Ladders must be positioned at a safe angle to avoid potential fall hazards when climbing. An ideal…

A: When a ladder is leaned against a wall, the bottom of the ladder should be one fourth of the…

Q: A 55-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is…

A: The change in potential energy of the pole vaulter will be equal to her change in kinetic…

Q: A 60 kg snowboarder (including equipment) heads down a ski hill starting at a height of 100 m, from…

A: Mass, m = 60Kgheight, h = 100minitial speed, u = 4.5m/sfinal speed , v = 90kmh = 90x518 ms =…

Q: Is the following statement true or false? A spring stretched by 5cm stores the same potential energy…

A: The above statement is true.If you pull on a spring and stretch it, then you do work. You're…

Q: A block of mass m = 5.00 kg slides down a ramp with a constant speed v = 3.00 m/s. The ramp is 1.500…

A: When an object of mass m is sliding down , thermal energy is released due to the frictional force…

Q: A 1300-kg car moving on a horizontal surface has speed y = 50 km/h when it strikes a horizontal…

A: The kinetic energy will equal to the elastic potential energy. mv22=kx22

Q: 18. A 30.0 kg box initially at rest is pushed 5.00 m along a rough, horizontal floor with a constant…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A 10-kilogram block is released as quickly as possible from point A on the ABC path. Since the…

A:

Q: Ugonna stands at the top of an incline and pushes a 103-kg crate to get it started sliding down the…

A:

Q: A 51.3-kg pole vaulter running at 9.62 m/s vaults over the bar. Her speed when she is over the bar…

A:

Q: A 0.75-kg block slides on a rough horizontal table top. Just before it hits a horizontal ideal…

A: GivenMass of the block m = 0.75 kgVelocity of the block v =3.5 m/sSpring of constant k = 1200…

Q: A 2kg steel sphere is dropped from a height ʼn and, when it hits the ground, its kinetic energy is…

A:

Q: A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is…

A: We must use conservation of energy in this question.

Q: At Schlitterbahn, a 75.0 kg person rides a 12.0 m high water slide. If dissipative forces do -6.25 x…

A: Given m=75kg h=12m Ed=-6.25*10^3J To find the velocity at the bottom of the slide :

Q: A box of unknown mass is sliding with an initial speed v₁ = 4.30 m/s across a horizontal…

A: Intial velocity of box = 4.3m/s Rough section of floor=2.8m Coefficient of kinetic friction=0.1 Let…

Q: A 69-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is…

A:

Q: A 254 g textbook slides up a 20.3° incline that is 5.00 m long. Using conservation of energy and…

A: Using conservation of energy,

Q: A San Francisco cable car loses its brakes and runs away down a hill 30 m high. A) Calculate its…

A:

Q: A 41-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is…

A: Given, Mass is 41 kg, Initial speed is 11 m/s and final speed is 1.5 m/s

Q: A 34.0 kg box initially at rest is pushed 5.10 m along a rough, horizontal floor with a constant…

A: (a) the work done by the applied force is , W=FdW=135 N5.10 mW=688.5 JW~689J (b) the increase in…

Q: When a 60kg object increases its potential energy by 9000J. Approximately how much has its position…

A:

Q: Starting from rest, a horse pulls a 241-kg cart for a distance of 1.50 km. It reaches a speed of…

A: Given horse pulls a 241-kg cart for a distance of 1.50 km. It reaches a speed of 0.380 m/s by the…

Q: A roller coaster of mass 500 kg is at its highest point in a loop traveling at a velocity of 4 m/s.…

A:

Q: a 1 kg flower pot has 20 J of energy when resting on a window ledge. how high is the window from the…

A: Given, the potential energy of flower pot =20 Jand mass of flower pot =1 kgwe have to calculate the…

Q: At the local playground, a child on a swing has a speed of 2.22 m/s when the swing is at its lowest…

A: The speed of the swing at the lowest point is given by v=2.22 m/s

Q: 1) A5 kg object is moving downward at a velocity of 12 m/s and is currently 2.6 meters above the…

A:

Q: A steel ball of mass 0.2 kg is projected vertically upwards from the top of a building 100m high…

A:

Q: A hurricane wind blows across a 8m x 17m flat roof at a speed of 135  km/h.  Calculate the force…

A: Let us consider a hurricane wind blows across a roof of an area,(A) at a Final speed (v2) in…

Q: When a 12 kg object increases its potential energy by 720 J, approximately how has its position…

A: Given  Mass M = 12 kg Potential Energy PE = 720 J

Q: Assume that there is no friction between the car and the track. The car has a mass of 750 kg.…

A:

Q: Name: A person's heart and head are 1.3 m and 1.8 m above the feet, repectively. Determine the…

A: