A skyscraper elevator travels 20m while reaching its cruising speed of 10 m/s. A 82 kg passenger gets a Ford on the ground floor just as the doors are closing. What is the passengers apparent weight just as the doors close

Q: A person weighing 601.3 N stands on spring scales in an elevator that is moving downward with a…

A: Scenario - While going downward in a lift with constant velocity, a person experiences jerk due to…

Q: You and a friend are on a road trip when your car runs out of gas only 20 meters from a gas station…

A: Given data *The distance of the car from the gas station is s = 20 m *The given horizontal force is…

Q: A 500 kg elevator is initially at rest on the ground floor. The passenger hits the top floor button…

A: Solution: As given m = 500kg x = 7.5 m v = 2m/s

Q: Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He…

A: Given that,Fp=8.7 NmA=10.6 kgmB=7 kgμk=0.02

Q: A 10 kg object is released at the top of a building 100 m high. If the force of air resistance is on…

A: Given: The mass (m) of the object is 10 Kg. The height (h) of the building is 100 m. The force of…

Q: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

A: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

Q: Papa Smurf (whose mass is 1kg) is sliding at 1.0 m/s over an icy pond that has no friction.  A force…

A: From Newton’s 2nd law, the expression of the force is given as, Here, m and a represent the mass…

Q: A box is hanging at rest from the ceiling by two ropes. The rope on the left (Rope 1) forms a…

A: Recall  For the equilibrium of the box∑Fx=0∑Fy=0

Q: A patient's foot shown in the figure does contact the floor only at point P (the heel () does not…

A:

Q: In the figure below, a runaway truck with failed brakes is moving downgrade at 36 m/s just before…

A:

Q: A 77-kg person is standing on a scale in an elevator. What is the reading of the scale in newtons if…

A: reading of a scale depends upon the force exerted by person on the scale (usually its normal force)…

Q: A backpack on a frictionless table experiences a pull to the left of 60 N and a pull to the right of…

A: Suppose a frictionless table having a backpack which experience forces on both on left and right…

Q: A 80 kg bobsled is pushed along a horizontal surface by two people.  After the bobsled is pushed a…

A: mass, m = 80 kg  distance, s = 5 m  initial speed, u =0 m/s  final speed, v = 8 m/s

Q: Corey, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the…

A: Apply newton’s second law of motion along the motion of the lift,

Q: a 60 kg object is moving at 20m/s when a force brings the object to rest in 0.050 seconds. of the…

A: Given, mass of the object (m) = 60 kg  Initial speed (u) = 20 m/s  Final speed (v) = 0 m/s  Time…

Q: A bullet of mass 20g traveling at 16m/s penetrates a sand bag and is brought to rest in 0.05s . Find…

A: A. Depth of penetration  is  0.4m B. Average  retarding  force is 6.4

Q: Trailer truck has a mas of 4 metric tons and is traveling at 75 km/h. The driver then applies the…

A: Given,  m = 4000 kg  v = 75 km/h     = 20.83 m/s  t = 6 sec  According to Newton's first equation of…

Q: While exercising in a gym, you hold a 2,000-N weight at the height of 0.5 m above the floor. The net…

A: Given:- you hold a weight 2000 N at a height of 0.5 m above the floor .

Q: A box of mass 4.0 kg hangs by a cable from the ceiling of an elevator. The elevator is moving up at…

A: Given(s): Mass of the box, m=4.0 kg Height raised, h=4 m Moving at a constant speed of 5.0 m/s.…

Q: A 1100-kg elevator is rising and its speed is increasing at 3.0 m/s2. The tension in the elevator…

A: Draw the free-body diagram of the system.

Q: A 50,000 kg locomotive is traveling at 40.0 m/s (on a horizontal track) when its engine and brakes…

A:

Q: 65-kg ice skater coasts with no effort for 75 m until she stops. If the coefficient of kinetic…

A: given  coefficient of kinetic friction = μ = 0.1  mass = 65 kg  distance covered s = 75 m  final…

Q: A 4.50 kg box is suspended from a system of massless wires attached to a ceiling. The first wire…

A: Given data The mass of the box is m = 4.50 kg The angle made by the first wire with the ceiling is:…

Q: A block with mass m1 = 8.5 kg is on an incline with an angle θ = 33° with respect to the horizontal.…

A:

Q: ng from the middle of a clothesline. The rope is attached at equal heights 24 units apart and the…

A: We know that here we have given that the rock hanging on the middle of the clothesline and the entre…

Q: A 1000 kg car was travelling at 45m/s when it hit a concrete wall due to drunk driving. Find the…

A: mass of car (m) = 1000 kg Initial velocity (u) = 45 msfinal velocity (v) = 0 mstime (t) = 0.5 sec

Q: Dr. Jekyll (m = 70kg) is riding a skateboard when he realizes the cranberry juice he’s drinking is…

A: Given data: Mass of Dr. Jekyll, m=70 kg Initial speed of Dr. Jekyll, u=6.5 m/s Mass of Mr. Hyde,…

Q: Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He…

A: Given: Horizontal pushing force on both boxes by Alex, F→p=9.1 N Mass of box A, mA = 10.2 kg Mass of…

Q: A mass m is placed at a height of h from the ground on a wedge . ( u coefficent of friction = 0 for…

A: Mass = m Height = h Distance traveled on the ground, x = 20 m Coefficient of friction between the…

Q: A 75 kg student leaps from a burning hotel window to be caught by a fire net. His speed as he…

A:

Q: oard and you must slide your weighted disk 8m across the floor where it will come to rest on the…

A: Given:- The mass of the disk m =0.8 kg. The initial push of velocity u = 4 m/s.  The disk move…

Q: If someone can vertically jump a height h on earth, with g = 9.8 m/s2, how high can they jump on…

A: we need to put some effort to jump up i.e., to move up against gravitational force. what ever the…

Q: You have a tray of mass 100 grams which is loaded with an additional 200 grams. It is attached via a…

A:

Q: A 2.0 kg particle moving along the x-axis experiences the force shown in (Figure 1). The particle's…

A: Given Data: Mass is m=2 kg Initial velocity is u= 3 m/s

Q: At the base of a hill, a 90 kg cart drives at 13 m/s toward it then lifts off the accelerator…

A:

Q: You and your friend Peter are putting new shingles on a roof pitched at 25 ∘ . You're sitting on the…

A: From conservation of energy, net work done on the box is equal to the change in kinetic energy of…

Q: A machine gun fires 150 g bullets at a speed of 1000 m/s. The gunman holding the machine gun in his…

A:

Q: A high jumper with a body weight of 900N exerts an average vertical force of 2150N down on the floor…

A: Given Data: The weight of a high jumper is: W=900 N The average force applied by the jumper to the…

Q: You push a file cabinet up a frictionless ramp tilted at 10°with horizontal. The file cabinet has a…

A: Given information :-

Q: You and a friend are on a road trip when your car runs out of gas only 20 meters from a gas station…

A: Hey, there are multiple subparts posted, we are authorized to answer three subparts at a time, since…

Q: 52.0-kg person jumps from rest off a 4.20-m-high tower straight down into the water. Neglect air…

A: when man jump then velocity at the surface of water= 2gh =2x10x4.2 = 9.16 m/s in water velocity will…

Q: Calculate the magnitude of the normal force on a 12.7 kg block in the following circumstances.…

A:

Q: A 600 kg piano is being lowered into position by a crane while two people steady it with ropes…

A: Given that mass of the Piano is 600Kg and Fbob=420N. Then We have to determine the force and…

Q: A car is initially traveling at a speed of 90 km/h, suddenly brakes so that the speed becomes 36 km…

A:

Q: A cable with 21.37 N of tension pulls straight up on a 1.88 kg block that is initially at rest. What…

A:

Q: A car carrying a 79-kgkg test dummy crashes into a wall at 26 m/sm/s and is brought to rest in 0.10…

A: The acceleration of the car is