A parachutist reaches terminal velocity a few seconds after jumping from an airplane. What is true in this situation?   Then net forces are zero. The weight is acting downward. There is a drag force upward. All of the above.

Q: An 80 kg person is standing on a scale in an elevator. Find the weight that the scale reads when the…

A: The answers are below

Q: A freight train has a mass of 1.1 x 10' kg. If the locomotive can exert a constant pull of 7.0 x 105…

A:

Q: When a parachutist jumps from an airplane, he eventually reaches a constant speed, called the…

A: As a parachute jumps from an airplane, his velocity is increasing. This time, there will be…

Q: A block with mass mp = 6.75 kg is suspended on a string. You pull upwards on the string creating a…

A: Given value--- mass = 6.75 kg. tension = 70.9175 N. initial speed = 3.25 m/s. time = 2.5 second .…

Q: Answer the following question: 2. A 5,000-lb airplane is in a steady glide with the flight path at…

A: Given that, W=5000lb D=750lb L=?

Q: Cabinet of mass (40 kg) rests on a rough horizontal floor. If you pulled the cabinet with a…

A: Here given the mass of cabinet is 40 kg. It pulled by a horizontal force 200 N. The coefficient of…

Q: happens with the acceleration of a moving object when the force is doubled and the mass is constant?…

A: According to Newton's second law  F = ma

Q: A worker drags a crate across a factory floor by pulling on a rope tied to the crate. The worker…

A: Given  Force exerted by worker F=400N f=100N angle q=30 mass of crate m=300kg

Q: You use a string to suspend a cork ball with a mass of 32.0 g from the ceiling of a moving…

A:

Q: A student decides to move a box of books into her dormitory room by pulling on a rope attached to…

A:

Q: A body begins to slide over the surface of another, when pulled with a force of 10N. If we pull with…

A: Given, Limiting friction,f=10 N Applied force, F=4 N

Q: A dog is pulling a 65 kg sled up a hill inclined at 20 degrees above the horizon. The dog pulls with…

A: Given Datam=65kgθ1=20°θ2=29°P=465Nf=75NTo find a=?

Q: 1200-kg car accelerates 25 m/s in 10 s. If a frictional force of 150 N resists the motion, what…

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Q: A student decides to move a box of books into her dormitory room by pulling on a rope attached to…

A:

Q: IN A 8000kg locomotive is pulling 5000kg cars to the right. The locomotive is experiencing a 1000N…

A:

Q: The coefficients of kinetic fraction between this 27 kg box and the floor is 0.25 and the pushing…

A: Given  Coefficient of kinetic friction  ,u = 0.25  Mass of block = M= 27 kg  Applied force = F = 171…

Q: 124. The diagram below represents a 10.-newton block sliding at constant speed down a plane that…

A: Since object is moving with constant speed hence acceleration acting on it is zero so net force…

Q: A block with a mass of 7.24 kg is on a horizontal surface that has friction. A string is pulling…

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Q: A force of 450 Newtons is needed to push a crate across a horizontal floor at a constant speed. The…

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Q: paratrooper with his gear has a mass of 135.0- kg has reached terminal velocity. a) Draw a free-body…

A: given  Mass of paratrooper,M = 135 kg  g = 9.8 m/s2  The value of air resistance in Newtons ,F =???

Q: What is the net force for the following situation: weight = 700 N and the air resistance is 100 N.…

A: Given that               The weight (W) = 700N                Air resistance (F) = 100N

Q: fisherman is fishing from a bridge and is using a "65-N test line." In other words, the line will…

A: Let w =weight of fish = m×g    Also , F = 65N   a) At constant speed, acceleration = a= 0    So,…

Q: 17. A skydiver of mass 80.0 kg jumps from a stationary helicopter and reaches a terminal speed of…

A: Given data: Mass of skydiver is, m=80.0 kg. Terminal speed is, v=50.0 m/s.

Q: In the figure below, the net external force on the 28 kg mower is given as 52 N. If the force of…

A: Mass of mower (m) = 28 kg Net external force on the mover (Fnet) = 52 N Force of friction (f) = 10 N…

Q: A skydiver accelerates downward at 8 m/s2 during the first second. Her weight is –540 N. The net…

A: Given that:- Acceleration of skydiver=8m/s^2

Q: A 6000kg locomotive is pulling 4000kg cars to the right. The locomotive is experiencing a 1000N drag…

A:

Q: A single-celled animal called a paramecium propels itself quite rapidly through water using its…

A: The drag force experienced by the paramecium is given by the  equation bellow Fdrag = -bv2  Where b…

Q: Someone is standing on a scale inside an elevator. When the elevator is accelerating upward, the…

A: The mass of the person is m The acceleration is a The weight of the person is w When the elevator is…

Q: 3. A rope of mass 5 kg is moving vertically in vertical position with an upwards force of 100 N…

A: Given: The mass of the rope is 5 kg. The tension in the upper end is 100 N vertically upward. The…

Q: A student decides to move a box of books into her dormitory room by pulling on a rope attached to…

A:

Q: A 100-lb block slides down a frictionless inclined plane at an angle of 60 degree with the…

A: Given  M = 100 lb  D1 = 20ft  D2= 20ft  T1,T2=?? Angle = 60°

Q: Q5: 2. A car on a highway moves forward with a constant speed of 13.0 m/s. The net force (the sum of…

A: The car is moving with a constant speed therefore the acceleration of the car is zero and thus the…

Q: A 2.00 [kg] brick is pushed by a 10.0 [N] force against a rough wall with coefficient of static…

A:

Q: A 100-g box slides across a frictionless horizontal plane. If it is accelerating at 15 m/s2, find…

A:

Q: A 50.0 kg athlete is suspended motionless from the end of a light rope attached to the ceiling. 1.…

A: Disclaimer:“Since you have asked multiple question, we will solve the first question for you. If you…

Q: Which of the following situations is an example of unbalanced forces? A rollercoaster car…

A: Unbalanced forces can change the motion of an object in two ways. so option (a) is correct. A…

Q: What is the coefficient of static friction on an 18 kg object that can be pushed with a force of 135…

A:

Q: Calculate the normal force on a 15.0 kg block in the following circumstances: (a) The block is…

A: The normal force =15.0kg

Q: N4T.1 Aweight hangs from a string but is pulled to one side by a horizontal string, as shown. The…

A: Write the expression for net force acting on the weight in the vertical direction

Q: A 75.0-kg person stands on a scale in an elevator. What does the scale read (in N and in kg) when…

A:

Q: A student decides to move a box of books into her dormitory room by pulling on a rope attached to…

A: Given, mass of box=25.0 kg tension force = 134.0 N angle = 15.0 degree coeficient of kinetic…

Q: When you stand at rest on the floor, you apply a force on the floor and the floor applies a force on…

A: (a) The free-body diagram of a person standing on the floor is shown below. Here, W denotes the…

Q: 4. A rock is suspended from a string; and it accelerates downward. Which one of the following…

A: Newton's second law of motion defines force as the the product of mass and acceleration of a object.…

Q: A skydiver of mass 83.5 kg jumps from a slow-moving aircraft and reaches a terminal speed of 54.4…

A: It is given that,

Q: When you sit on a chair, the resultant force on you is     a. zero   b. up   c. down   d. it…

A: Our answer will be zero (option a) Reason when you sit on a chair , there will be downward force due…

Q: A freight train has a mass of 1.7 ✕ 107 kg. If the locomotive can exert a constant pull of 6.8 ✕ 105…

A: The given values are, m=1.7×107 kgF=6.8×105 Nu=0v=84 km/h=84 km/h1000 m1 km1 h3600 s=23.333 m/st=?

Q: Help

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Q: 7. A child decides to take her cat on a walk, but the cat does not cooperate. The child pulls on the…

A: Horizontal component of force is as follows: FH=Fcosθ…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!