A skydiver is falling at terminal velocity. What is the net force acting on the skydiver? O Downward. O Upward. O Zero.

Q: 18. If a bicycle is moving forward at 100 N and air resistance was 30 N, what is the total force of…

A: The forward-moving force of the bicycle, F=100 N   The air resistance, fair=30 N

Q: Juliet drops a 0.25 kg grapefruit from the 3rd-floor palcony (10 m high), into Romeo's waiting hands…

A: Given Mass of grapefruit is m= 0.25 kg Acceleration due to gravity is g= 9.80 m/s2.

Q: An acorn falls from a tree. Ignoring air resistance, what forces are on the acorn while it's…

A: Acorn is the small nut of the oak tree, that grows in a base shaped like a cup when acorn falls from…

Q: What is the net force? Engine Car Trailer 6000 N 1000 N 1000 N A) 4000 N, right B) 4000 N, left 40…

A:

Q: What happens to the force if the acceleration remains unchanged? a. Constant c. One-half as much. b.…

A: Correct option (a). Constant Reason According to Newton's second law , F = m*a Accleration is…

Q: An elevator cab that weighs 29.0 kN moves upward. What is the tension in the cable if the cab's…

A: Weight= mg, where m is mass and g is acceleration due to gravity. Also, in the first part speed is…

Q: A 20 kg mango crate is being dragged across a floor at a constant velocity with a horizontal force…

A: Given Data : The mass of the mango is given as m = 20 Kg. The force required to move the mango is…

Q: A plum bob hangs from the roof of a railway coach. What angle will plum line make with vertical when…

A: When the train is accelerating at 2.3 m/s2 ,the bob experiences equal acceleration but in opposite…

Q: 2. All of these are contact forces EXCEPT * O Normal force Gravitational force O Friction force O…

A: Force is a physical cause that can change the state of motion or the dimensions of an object. There…

Q: As part of a physics experiment, you stand on a bathroom scale in an elevator. even thougi 704 N,…

A: Given:- The actual weight  W = 704 N  The scale read the weight is 894 N  When the elevator…

Q: A 1.84-kg bag of clothespins hangs in the middle of a clothesline, causing it to sag at anangle u =…

A: Given data: Mass of the bag m=1.84 kg Angle θ=3.50°

Q: a 1000 kg car is traveling down a 25 degree slope. at the instant the speed is 13 m/s,the driver…

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Q: An acorn falls from a tree. Ignoring air resistance, what forces are on the acorn while it's…

A: Acorn is small nut of the oak tree, that grows in a base shaped like a cup when acorn falls from…

Q: A 50 kg skydiver is falling downwards and accelerating 6 m/s? down. What is the net force on the…

A: The force is calculated as F =ma where m is the mass and a is the acceleration. The direction of…

Q: You are trying to push your stalled car. Although you applya horizontal force of 400 N to the car,…

A: The forces acting on the car in the horizontal direction are the force exerted by the person pushing…

Q: on string a, Ta, is 0.48 N. 42° b J a d K 30° 25° т a) What is the tension on string b? b) What is…

A: Tension is a stretching or pulling force that along the length of a string, cable spring etc. The…

Q: what is the normal force on a 20 kg boy inside an elevator (1enn) that is accelerating upward at 2…

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Q: The coefficient of friction between a 90kg bookcase and the ground is 0.67. What acceleration does…

A: Given, Mass, m=90 kg, Coefficient of friction, μbg=0.67. The free-body diagram is given below. The…

Q: A skydiver who weighs 500 N reaches terminal velocity of 70 km/h. The air resistance on the skydiver…

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Q: 80 kg object is sliding across the table & you are applying a force of +300 N. The coefficient of…

A: Mass of object, m = 80 kg Force applied, Fapp = +300 N Coefficient of friction, = 0.3

Q: A skydiver of 75.0 kg mass has a terminal velocity of 60.0 m/s. At what speed is the resistive force…

A: Given: The mass of the skydiver is m=75 kg The terminal velocity is Vt=60.0 m/s

Q: A 4500-kg helicopter accelerates upward at 2 m/s?. What lift force is exerted by the air on the…

A: given, Mass of the helicopter, m = 4500 kg. The acceleration of the helicopter, a = 2 m/s2 The force…

Q: f the same force is used to push a car and a truck, which of the following wil nave more…

A: According to Newton's second law F=ma The acceleration of each object is a=F/m From this equation,…

Q: Suppose that the resistive force of the air on a skydiver can be approximated by f = −bv2. If the…

A:

Q: You want to hang an object from the ceiling of an elevator that has a maximum acceleration of 4.0…

A:

Q: Albert weights 85kg stands on a scale inside an elevator. What is the weight in Newton that the…

A: Given that: Mass of albert: m=85 kg To determine the weight that the scale reads: (a) at rest? (b)…

Q: A block rests on an inclined plane at an angle of 25.0 (N of E) . If the block is pushed with 10 N…

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Q: If the mass of the book is 50 Kg sliding with acceleration 1.2 m/s? then the friction force is O 364…

A:

Q: Four skydivers jump from a helicopter. Diver A: 65 Kg Diver B: 85 Kg Diver C: 100 Kg Diver D: 105 Kg…

A: Free fall is a motion of an object under the influence of gravity, where no other force is working…

Q: An acorn falls from a tree. Ignoring air resistance, what forces are on the acorn while it's…

A:

Q: Riders on the Power Tower are launched skyward with an acceleration of 4g, after which they…

A: (a) apparent weight, W'=m(g+a) that is, W'=60 kg(g+4g)W'=60 kg(5g)W'=60 kg(5)(9.8 m/s2)W'=2940 N

Q: 4. A 75 kg box slides down a ramp inclined at 250 with an acceleration of 3.60 m/s2. a) Find the…

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Q: You walk into an elevator, step on a scale, and push the "up" button. You also recalll that your…

A: the free body diagram is given above,the N is the normal force, a is the acceleration of the…

Q: As part of a physics experiment, you stand on a bathroom scale in an elevator. Even though yur…

A:

Q: uation below, the net force (Fnet) is 50 N 80 N 200N 200 N

A: Given  Fnet=900N up Weight w=200N

Q: Two boys are pushing a 25-kg box on top of a long table with a force of 3.0 N each towards right. If…

A: Accelaration is given as a = F/m where F is the net force .

Q: When you slide a box across the floor what force must your push be stronger than? * O Support force…

A:

Q: Two blocks connected by a string under tension Tare accelerated to the right by a horizontal 20 N…

A:

Q: A 75 kg man stands on on a scale in an elevator. When the elevator begins to rise, the scale reads…

A: Mass of the man,

Q: An elevator cab that weighs 20.8 kN moves upward. What is the tension in the cable if the cab's…

A: W = 20.8 kN = 20.8 x 103 N The weight W is                             W = mg The mass m is…

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

A:

Q: The elevator of a mine weighs 3200 N. In the last upward moments of the descent, the elevator has an…

A: Drawing the free body diagram of elevator T is tension in rope As g=10 m/s2 Mass of elevator is ,…

Q: What's the acceleration if you push with a 20N horizontal force on a 3 kg block on a horizontal…

A: Given data:  Force (F) = 20 N Mass (m) = 3 kg Frictional force is zero  Required: Acceleration (a)

Q: What happens when a person pulls upward on a box with a force equal to or greater than the box's…

A:

Q: The “terminal velocity of a skydiver going out the plane is 130 km/h.  His mass is 50.9 kg.  What is…

A: The expression for the upward force,

Q: A skydiver reaches a terminal velocity (i.e constant velocity) of 200 km/ h after a few seconds from…

A: When the skydiver reaches his terminal speed, the speed no longer changes and hence, remains…