An airplane pilot fell 370 m after jumping from an aircraft without his parachute opening. He landed in a snowbank, creating a crater 1.1 m deep, but survived with only minor injuries. Assuming the pilot’s mass was 88 kg and his speed at impact was 45 m/s estimate: (a) the work done by thesnow in bringing him to rest; (b) the average force exerted on him by the snow to stop him; and (c) the work done on him by air resistance as he fell. Model him as a particle.

Q: A poor guy pulls a 10-kg luggage along a level boulevard for 5 m by exerting a force of 35N at an…

A: Given data: Mass of luggage is, m=10 kg. Distance travelled is, s=5 m. Magnitude of force is, F=35…

Q: Coal is lifted out of a mine a vertical distance of 50 m by an engine that supplies 500 W to a…

A:

Q: Promotional material for the 2020 C8 Chevrolet Corvette boasts a ''490 hp engine" and a "zero to 60…

A: Given data: Initial speed of the car, u=0 Final speed, v=60 mph = 26.82 m/s Mass of the car,…

Q: The human small intestine moves food alongits 6.9-m length by means of peristalsis, a contraction…

A:

Q: As a snowboarder descends a mountain slope, gravity, the normal force, and friction combine to exert…

A:

Q: A weight lifter lifts a 350-N set of weights from ground levelto a position over his head, a…

A: When the weightlifter lifts the weight with a constant velocity, the net force on the weights will…

Q: A force F = (4xi-3y2j)Nacts on a particle, the particle moves along the x-axis from x= 1 to x = 4m.…

A: Write the expression of the force vector on a particle.   F=4xi-3y2j   Write the expression of the…

Q: Starting a race, a 68.2-kg sprinter runs the first 7.04 m in 1.60 s, starting from rest and…

A: Given: The mass (m) of the sprinter is 68.2 Kg. The distance (S) covered by the sprinter is 7.04 m.…

Q: How much work does gravity do on a 2.5-mg raindrop as the drop falls to the ground from a cloud 2200…

A: Answer              5.39*10-5 J

Q: A 5.0-kg block is pushed 3.0 m up a vertical wall with con- stant speed by a constant force of…

A: Figure shows the force acting on the block.

Q: 9.108. For a car weighing 980 kg, how much work must be done to move the car 24 miles? Ignore…

A: First, we must understand what is work done. Work is the energy transfer that happens when an object…

Q: In physics, what conditions must be satisfied if work is to be done?

A:

Q: is pushed 4.O m along hori zontal floor by A 2 kg block a force of magnitude 25N at angle Q = 30.0°…

A:

Q: A record for stair climbing was achieved by a man who raced up the 1600 steps of the Empire State…

A: Given data from question,  Number of steps = 1600 Height = 320m Time taken = 10.2min Weight of man =…

Q: Find the work done by 45N force in pulling the suitcase at an angle of 50d egrees with respect to…

A:

Q: Ignoring details associated with friction, extra forces exerted by arm and leg muscles, and other…

A: Introduction: Various forms of energy can be converted into another form. According to conservation…

Q: i. A 5.0-kg block is pushed 3.0 m up a vertical wall with con- stant speed by a constant force of…

A: Given  Mass of block = 5.0 kg  Angle =30°  coefficient of friction=u= 0.3    Displacement =d= 3.0m…

Q: A 1.08E+2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of…

A:

Q: (II) Estimate the work you do to mow a lawn 10 m by 20 mwith a 50-cm-wide mower. Assume you push…

A:

Q: One species of Darwin’s finch, Geospiza magnirostris, can exert a force of 217 N with its beakas it…

A:

Q: Suppose the total work done on a 1620-kg car as it coasts 25.0 m down a hill with f = 6.00° is…

A:

Q: How much work is done on a downhill skier by an average breaking force of 813 newtons to stop her in…

A:

Q: A 185 kg refrigerator is placed inside a mobile freight transport by pushing it up on a 10.0 m ramp…

A:

Q: To clean a floor, a janitor pushes on a mophandle with a force of 50.0 N. (a) If the mop handle is…

A:

Q: A leaky bucket, which weighs 2 N empty and initially has 10 N worth of water in it, is lifted into…

A: Work done will be equal to change in the potential energy of the bucket. Let the potential energy at…

Q: You drag your 30 kg suitcase 1200 m thru the Chicago airport at essentially constant velocity 2.0…

A:

Q: A 4000-kg elevator starts from rest accelerates uniformly to a constant speed of 2.0 m/s and…

A: The potential energy of a body is given by PE = mgh, where m = the mass of the body g = acceleration…

Q: ,2 54. A 5.0-kg box has an acceleration of 2.0 m/s when it is pulled by a horizontal force across a…

A:

Q: A baseball of mass 350 g is hit at home plate with a speed of 50 m/s. When it lands in a seat in the…

A:

Q: A man pushes a 270-N block 9.1 m along a level floor at a constant speed with a force-directed 45•…

A:

Q: Is the work done by the applied force positive or negative when a heavy body is lowered to the…

A: Let h be the height at which the body is initially, F be the applied force, W be the work done by…

Q: A 0.14-kg pinecone falls 16 m to the ground,where it lands with a speed of 13 m>s. (a) With what…

A:

Q: In the figure shown, if the mass (m=6 Kg) is moving with constant speed and traveled a distance…

A:

Q: Find his power output, in watts, for the work he does against the gravitational force and air…

A: a) Analyze the following figure. Since the skier is moving at a constant speed, its acceleration…

Q: Find the work done by a 45 N force in pulling the luggage carrier at an angle e = 50 for a distance…

A: Option A is the right answer  2170 J

Q: A 121-kg crate is being pushed across a horizontal floor by a force P that makes an angle of 25.5 °…

A:

Q: The coefficient of kinetic friction between a suitcase and thefloor is 0.272. If the suitcase has a…

A:

Q: How much work must you do to push a 11.0 kg block of steel across a steel table (μk=0.6)at a steady…

A: a) The required work done is,

Q: How much work is done by a boy pulling his sister 30.0 m in a wagon if he applied 50 N force at…

A:

Q: A time-varying net force acting on a 5.9 kg particle causes the object to have a displace- ment…

A: According to question--- Given data--- mass = 5.9 kg. Distance x = a + bt + dt2 + et 3 . a = 2.1 m,…

Q: oblem 8.6 As shown in Fig. 8.21, consider a 15 kg block being shed up the rough incline by a…

A: Work done = FS Cosθ

Q: A box of mass 20.0 [kg] slides down from the top of a surface inclined at 50.0º with height of 10.0…

A: