A chair of mass 15.0 kg is sitting on the horizontal floor; the floor is not frictionless. You push on the chair with a force F = 39.0 N that is directed at an angle of 35.0∘ below the horizontal and the chair slides along the floor.   Use Newton's laws to calculate the normal force that the floor exerts on the chair.

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Q: A 80 kg skydiver is free falling at a constant velocity of 19 m/s. What is the net (total) force…

A: Given,  Mass of skydiver = 80 kg Velocity of skydiver = 19 m/s

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A: Given: Mass of object, m=6 kg Position at time t, (x)= 4t3-2t,    y(t)=5t2-7    To determine: (a)…

Q: An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An…

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Q: Horizontal force, F1=75 N, and a force, F2= 13.3 N acting at an angle of theta to the horizontal, or…

A: 2 forces acting on a block,  Mass of block, m = 2.4 kg Horizontal Force, F1 = 75 N Force at angle…

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A: Newton's second law for constant mass is  F=ma Where F is the force m is the mass of the object a is…

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A: net force in the vertical direction of mass m1 is  N=m1g

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Q: Two forces F, = (55.76î – 12.93ĵ) N and F, = (27.41î - 72.94ĵ)N are exerted on a particle. The…

A: The mass of the particle is m=10.14 kg The force acting on the particles, F→1=55.76i^-12.93j^ N The…

Q: SFS S\thetas A block of mass 4.48 kg initially at rest is pulled by a force of magnitude Fat an…

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Q: A block with mass m sits on a frictionless plane inclined at angle θ, as shown in the figure. If the…

A: In this question  we use free body diagram.

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A: Mass of the body m=3 kg Velocity of the body v=10 m/s Time for which the body moves with constant…

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Q: 1.7 Practice Problem A locomotive of mass 2 * 10^5 kg travels 50 m / s along a straight horizontal…

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Q: A particle with a mass of 10 kg is moving at a velocity of (3t^2 + 4t)j m/s. What would be the…

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Q: A block with a mass of m = 32 kg rests on a frictionless surface and is subject to two forces acting…

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Q: A train car of mass%3DM%3D 2400 Kg is initially at rest, Pushed by a net force exerted by magnets,…

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Q: Newton's  Laws includes which of the following?   1.Object in motion stays in motion 2.No external…

A: There are three Newton's laws of motion.  1. If an object is at rest it remains at rest, or it is in…

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Q: Consider a 72 kg high jumper. a. Calculate the magnitude of the force, in Newton’s, the jumper must…

A: Given , mass of jumper ,m = 72 kg From Newton's 3rd law (To every action , there is equal and…

Q: A box of mass 30.0 kg is acted on by a constant horizontal force, which moves the box from rest 15.0…

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Q: Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg,  a) just after…

A: (a) Mass of the stone, m = 0.1 kg  Acceleration of the stone, a = g = 10 m/s2  As per Newton’s…

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A: The net force which Abi experiences during his jump must be the sum of the vertical forces. Now in…

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A: The magnitude of net acceleration of the ball is given by, a=ax2+ay2 Here, ax is the x-component of…

Q: A box rests on a frozen pond, which serves as a frictionless horizontal surface. If a fisherman…

A: Using Newton's 2nd law: F_net = m*a m = mass of box = ? a = acceleration of box  = 3.50 m/s^2 F_net…

Q: A particle, which remains at rest, is acted on by three forces F, G and H. The force F has magnitude…

A: Required   magnitude of G and H forces

Q: A child on a sled (total mass 55 kg) accelerates down a 18.4 degree incline at 1.26 m/s^2. What is…

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Q: A block of mass 105 kg lies on a horizontal plane. A horizontal force F of magnitude 1001 N is…

A: The free-body diagram of the block on the horizontal plane is shown below. Here, m is the mass, F…

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Q: A teenager of mass m1 = 61 kg pushes backward against the ground with his foot as he rides his…

A: Given: Ffoot = 10.5 N m1 = 61 kg m2 = 2.7 kg

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A: Which of the following is true regarding the ground reaction force?

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A: Problem of connected bodies

Q: Consider a person standing on a scale in an elevator. If the elevator accelerates upwards with an…

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Q: An object of mass m = 1.00 kg is observed to have an acceleration a→ with a magnitude of 10.0 m/s2…

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Q: What is the direction of the net force acting on the 5kg object? Two forces, 10 N east and 5 N west,…

A: Given data:  Two forces F1 = 10 N, towards East F2 = 5 N, towards West Required: The direction of…

Q: If a 3.10 kg body has an acceleration of 7.20 m/s2 directed at 38.0° to the positive x axis. what is…

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Q: If it takes a human cannonball 1.8 s to exit a 1.9 m long cannon and the average net force acting on…

A: Given, Length of the cannon, L = 1.9 m time taken by cannonball to exit, t = 1.8 s Net force acting…

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Q: A 2.8 kg mass is initially at rest while upon a horizontal surface. An applied force of 17 N is…

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Q: What is the magnitude of the average force, in newtons, exerted on a 0.0295-kg bullet to accelerate…

A: Calculate the change in momentum of the bullet. change in momentum = m(v2 - v1)…

Q: The diagram below shows the Free Body Diagram of the three forces acting on an object of mass 0.30…

A: From the above figure sinθ components of F is cancelled.The total force on the mass in the x…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.