An elevator, moving upward, decreases in speed from 8.20 m/s to 1.99 m/s in 2.03 s. Assuming constant acceleration during that time period, what is the upward force exerted by the floor of the elevator on a 71.6-kg passenger

Q: 115. An 800-newton person is standing in an elevator. If the upward force of the elevator on the…

A: Given,

Q: A man weighing 700 N is in an elevator that is accelerating upward at 4 m/s2. The force exerted on…

A:

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: A truck travelling at a speed of 60km/h is stopped in 3 minutes. The acceleration of the truck is a.…

A:

Q: A 40-kg trunk sliding across a floor slows down from 5.0 to 2.0 m/s in 6.0 s. Assuming that the…

A:

Q: A car moving with a velocity of 20m/s in the north direction, is acted upon by a pair of balanced…

A:

Q: A freight train has a mass of 1.4 ✕ 107 kg. If the locomotive can exert a constant pull of 7.7 ✕ 105…

A: To find the acceleration: Let's use Newton's force formula in terms of mass and acceleration…

Q: On the way to lower floors, an elevator begins its descent from rest with a constant acceleration,…

A: To solve the given question, we need to find the acceleration of the elevator first. Given(s):…

Q: The car in the previous question has an acceleration of 5.7 m/s? up the hill and mass of 737 kg.…

A: Data Given , Car Acceleration ( a ) = 5.7 m/s2 Mass of the car ( m ) = 737 kg  We have to find out…

Q: An 1000 kg elevator is being pulled up by a cable with a downward acceleration of 0.5 m/s^2. a) Draw…

A: Given: Mass of elevator m = 1000 kg. Downward acceleration a = 0.5 m/s2.

Q: A freight train has a mass of 1.2 ✕ 107 kg. If the locomotive can exert a constant pull of 7.9 ✕ 105…

A: The expression for acceleration of the train will be, a=Fma=7.9×105N1.2×107kga=6.6×10-2m/s

Q: A 20 kg object is having an acceleration of 4 m/s in the North direction; the net force acting on…

A: The force F acting on an object of mass m having acceleration a is given by, F = ma. The direction…

Q: A constant force of 200N is required to accelerate a 1600-kg trailer from rest to a speed of 25 m/s.…

A: Write the given values with the suitable variables. F=200 Nm=1600 kgu=0 m/sv=25 m/s Here, F is the…

Q: A freight train has a mass of 15000 kg. If the locomotive can exert a constant pull of 6000 N, how…

A:

Q: Which of the following forces is considered as a non-contact force? a. Air resistance C. Kinetic…

A:

Q: A teacup fell was left on the wing of a fighter jet and did not fall until the jet was already very…

A: When object falls with a constant velocity the drag force on it is equal to the gravitational force…

Q: A large crate of mass m is place on the flatbed of a truck but not tied down. As the truck…

A: Given that- A large crate of mass market placed on flatbed of truck but not tied down Truck…

Q: Assume that an object has no unbalanced force acting on it. Which statement about the object is…

A: Given data: The unbalanced force on the object is zero. Fnet = 0

Q: You throw a ball vertically upward. After the ball has left your hand and is moving upward, what…

A: As per company policy, we are restricted to solve one question at a time. Please ask other question…

Q: In the absence of air drag, the acceleration due to gravity is 9.81 m/s². What is the magnitude of…

A: Draw the free-body diagram of the body as:

Q: A 7-kg box slides across a frictionless surface.  If a 50 N force is applied on it, find its…

A:

Q: A 20 kg object is having an acceleration of 4 m/s? in the North direction; the net force acting on…

A: Given  Acceleration a=4m/s2  in North direction  Mass of object m=20kg

Q: A 450-kg sports car accelerates from rest to 100 km/h in 4.80 s. What magnitude force does a 68.0 kg…

A: By equation o motion V =U + aT Here, V = final velocity 100km/hr or 100 *5/18 m/s = 27.78m/s , u…

Q: A car uniformly accelerates from 0 to 29.0 m/s. A 80.0-kg passenger experiences a horizontal force…

A:

Q: 4. A 90 kg man stands in an elevator that has a downward acceleration of 1.4 m/s?. The force exerted…

A: We’ll answer the first question since the exact one wasn’tspecified. Please submit a new question…

Q: A child drags their toy lawnmower (mass 1.20 kg) across the floor with an applied force of 4.00 N…

A:

Q: A 2400 kg airplane is pulling two gliders, the first of mass 340 kg and the second of mass 260 kg ,…

A:

Q: A force  applied to an object of mass m1 produces an acceleration of 3.20 m/s2. The same force…

A: Since force is same, m1a1=m2a2m1m2=a2a1=1.70 m/s23.20 m/s2m1=0.531m2

Q: a 2.5 kg model helicopter has a velocity of (4 m/s) at t = 0 s. it is accelerated at a constant rate…

A: The force on an object is the change of momentum in momentum in a unit time. Assuming the initial…

Q: 26. A cart is uniformly accelerating from rest. The net force acting on the cart is a. decreasing b.…

A: Given data:  Cart's acceleration uniform Initial velocity = 0, starting from rest

Q: A 2-ke block is pulled bya constant horizontal force of 10 N. If the coefficient of friction between…

A:

Q: A car with a mass of 1500 kg is being towed by a rope held at a 20°angle. A friction force of 320 N…

A: Given : mass of car, m = 1500 kg  Frictional force, Ff = 320 N  Angle = 20° Initial speed, u = 0 m/s…

Q: A freight train has a mass of 1.4x10^7 kg. if the locomotive can exert a constant pull of 8.3x10^5…

A: According to the Newton’s second law, the acceleration of the freight train,Substitute the values,

Q: Determine the force needed to accelerate a 15 kg grocery cart from rest to a velocity of 0.50 m/s in…

A: Given  Mass of cart m=15kg  Initial speed u=0m/s Final speed v=0.5m/s time t=2.1s

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

A:

Q: A freight train has a mass of 1.4 x 10' kg. If the locomotive can exert a constant pull of 6.8 x 105…

A:

Q: A 39.0 N force pulls horizontally on a m1 = 1.3 kg block that slides on a rough horizontal surface.…

A:

Q: A force  applied to an object of mass m1 produces an acceleration of 3.66 m/s2. The same force…

A: The newton's law of motion for the object is, F=m1a1m1=F3.66 The newton's law of motion for the…

Q: A skateboarder on a ramp is accelerated by a nonzero netforce. For each of the following statements,…

A:

Q: A 62-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 827…

A: mass of man = 62 kg Reading of scale (r) = 827 N

Q: A person weighs -800 N and is traveling downwards in an elevator whilst stood on a bathroom scale…

A: The given values are, w=-800 N=800 N   downwardsN=840 Nm=81.5 kg

Q: A constant force applied to A causes A to accelerate at 7 m/s^2. The same force applied to B causes…

A: Given Values: aA=7ms2 aB=2ms2 aC=8ms2 According to newton's First law of motion Force F=m.a…

Q: A 72 kg person is standing inside an elevator. The elevator is moving upward at 2.61 m/s and is…

A:

Q: A ball with a weight of 20N is thrown vertically upward. What is the acceleration of the ball just…

A: The Accleration of the ball in it overall journey will remain constant and that is   g (10 m/s2)…

Q: An object experiences no acceleration. Which of the following cannot be true for the object? (a) A…

A: Acceleration is the rate of change in velocity when an external force is applied on the object.

Q: 4. A 90 kg man stands in an elevator that has a downward acceleration of 1.4 m/s. The force exerted…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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!