A lift in a hotel carries six people with a mass of 750 kg and a total mass of 450 kg. How many Newton (N) of force should the cable pull in order for the elevator to move upwards with an acceleration of 1 m / s²? (g = 9,81 m / s²)

Q: Q2: Suppose there are two bodies with an attractive force between them. The first body has mass (m)…

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Q: who is 5ft 10 in. tall weighs 160lbs. What is his height in centimeters and

A: Height of man = 5 ft 10 in 1 ft= 12 inches & 1 inch  = 2.54 centimeter So, height of man =…

Q: A force of 12 N gives an acceleration of 4 ms ² to an object. The force required to give it an…

A: Force is nothing but the push or pull on an object and is defined as the change of linear momentum…

Q: An object with a mass of 2.0 kg accelerates 2.0 m/s? when an unknown force is applied to it. What is…

A: Mass of object = 2 kg  Acceleration = 2 m/s² Concept:  Force is equal to  rate of change of momentum…

Q: A diver of 50 kg jumps from a platform 20m high into a pool. If the diver decelerates at a constant…

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Q: A truck is moving with a speed of 60 m/s. The driver applies the brakes and slows the vehicle…

A: Given: u=60 m/sv=40 m/sd=250 m

Q: 1. The _____________represents a generalization of the principle of conservation of energy to…

A: First law of thermodynamics is a general principle which represents the conservation of energy and…

Q: Q 1: km/h ? Determine the energy needed to accelerate a 1300 kg carriage from 10 to 60 Q2: Answer…

A: Ans.1  Given Data  Mass of the carriage, M=1300Kg  The initial speed of the carriage, u=10 Km/h=2.7…

Q: 1. Calculate the potential energy in the spring when the collar is at A. VspA = ______ ft-lb 2.…

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Q: If 8 lbs of a substance receives 240 Btu of heat at constant volume and undergo a temperature change…

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Q: A spring, whose unstretched length is 3 ft, stretches to a length of 8 ft when a force of 10 lb is…

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Q: 3.2 Ib/ft? 120 ft b 180 ft Wind 1.8 Ib/ft The wind pressure acting on the wall of a high-rise…

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Q: Boyle’s Law for the expansion of gas is , where P is the number of pounds per square unit of…

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Q: An object with the weight of 19.62 kN is floating in water, where the specific weight of water is…

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Q: What is the mass of an object that falls freely under the influence of gravity from an elevation of…

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Q: Solve the following with diagram

A: Given data:                               Mass of the piston(m)=4.3 Kg           Cross Sectional…

Q: A weightlifter raises a 150-kg barbell from the floor to a height of 2.2 m in 0.80 s. What is his…

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Q: The kinetic energy of a car of mass, m moving with velocity v is E = mv2/2. If m = 1000 kg and v = 6…

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Q: 1. The weight of a body is 100 lb,m: Determine the following: a. Its weight in Newtons (N); b. Its…

A: Given Data m=100 lbm

Q: Steam is held in two compartments (A and B) separated by a membrane. The total volume is 777 ft, and…

A: Answer: The original specific volume in compartment A is 15.8 ft3/lbm.

Q: A cylindrical steel tank with a diameter of 1 m is filled with liquid up to 2 m height. i. Calculate…

A: In the problem a cylindrical steel tank is given with following parameters: Diameter,D: 1 m…

Q: A 705 kg racecar driven by a 65 kg driver moves with a velocity of 382 km/h right. Find the force to…

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Q: Q2/ A conservative force F, = (9x3 + 7x? + 2x + 1)N ,acts on a 6 kg body ,as the body moves along…

A: Condition of Conservative work Work done by the force is independent of the path of the object its…

Q: The mass of a given airplane at sea level (g = 32.1 fps2) is 10 Tons. Find its mass in Lb, slugs and…

A: Given data: g=32.2 ft/s2h=50,000 ftDecrease rate=3.33×10-6 ft/s2 Need to determine the mass and…

Q: 3. An electric motor consumes 9.00 kJ of electrical energy in 1.00 min. If one-third of this energy…

A: Given   Energy, Q = 9 kJ       Time, t = 1 min = 60 sec   Speed, N = 250 rpm Find  Torque, T

Q: 21. An object with a mass of 6.5 kg accelerates 12.3 m/s? when an unknown force is applied to it.…

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Q: 1. The acceleration due to gravity at a certain level is 9.78 m/s2. This acceleration varies by 8.28…

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Q: A 100-kg box is towed to move horizontally from rest by a constant force P-200 N. The kinetic…

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Q: what is the required force to move a car (1300 kg) from rest to 80 m (with a 20 m/sec)?

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Q: 40 lb object is subjected to an applied upward force of 30 lbf. The only other force acting on the…

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Q: Q1: Calculate the force necessary to accelerate a 900-kg rocket vertically down at the rate of 30…

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Q: A student of mass 50 kg carries a bag weighing 4000g from the ground floor to his class on the first…

A: Given data, M = mass of student = 50 kg m = mass of bag = 4000g = 4 kg H = 900 cm  = 9 m g = 9.81…

Q: Q1/A 0.3 Kg ball has a speed of 15 m/s calculate : a) the kinetic energy, b) if its speed is doubled…

A: Given  mass = 0.3 kg Speed = 15 m/s (a) Kinetic Energy =12mv2=12(0.3)(15)2 =33.75 J(b) New Kinetic…

Q: 1- The newton's second law is (a) F= ma (b) M =Fd (c) N.M 2- The unit of mass is: (а) Kg (b) L (c) S

A: (a) F = ma (a) Kg (a) N/m2 (a) N (a) F.d

Q: Question #3: Given: A 100 Kg roller coaster car has an initial velocity of 5m/s. It starts from a…

A: Given data: The mass of the roller coaster is; m = 100 kg. The initial height of the roller coaster…

Q: An object whose mass is 5 lbm is subjected to an applied upward force. The net acceleration of the…

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Q: A ball is moving with a velocity of 5 m/s. Its velocity is decreasing at the rate of 1.05 m/s². What…

A: Given Data⇒ Ball is moving with a velocity (u)=5 ms Deacceleration (a)=-1.05ms2 Time (t)=8 s

Q: 1- In a bike, the __________ is converted into power. A. kinetic energy B. heat energy C. work…

A: As bike rotates kintect energy generates and converts to power to move it.

Q: 74. A 65-kg swimmer pushes on the pool wall and accelerates at 6 mis' The friction experienced by…

A: Given Data⇒ Mass of swimmer(m) =65 kg Acceleration(a)=6 ms2 Friction experienced by swimmer(F)=100 N…

Q: An object whose mass is 5 lbm is subjected to an applied upward force. The net acceleration of the…

A: aNet=16 ft/s2m=5 lbmg=32.2 ft/s2 Need to determine the magnitude of the applied upward force.

Q: What is the mass of an object that falls freely under the influence of gravity from an elevation of…

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Q: A 2.5 N weight has a kinetic energy 1.75 J. Determine its velocity in kph.

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Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.