A worker with mass m = 70 kg is trying to stretch his muscles with the help of a vertical wall. Assume that each hand is exerting a horizontal force of 55 N on the wall. What is the magnitude of the normal force acting by the wall on each of his hands? 70 N 60 N 75 N 50 N 55 N A block with mass m = 4 kg is attached to two ropes as shown below. What is the magnitude of the tension in rope 2, T2 = ? Use g = 10 m/s². 30 20° O O

Q: a mass of m=22 kg is hanging from a string connected to a hook on the ceiling. The configuration is…

A: Given: mass attached with string is m=22kg  The system is at rest

Q: Cable AB is 90 ft long and the tension in the cable is 3900 lb. Identify the angles θx, θy, and θz…

A: The direction cosines along all three axes can be defined as, Here, v is the vector and vx, vy and…

Q: An object of mass 2 kg is being pulled by a cable with a constant tension along a horizontal…

A: Given :Vi = -2 m/s (negative since it is going to the left) Vf = 3 m/s m = 2 kgti = 0 stf = 5 s…

Q: An freight elevator has a mass of 750kg and is accelerating 1.6 m/s/s upwards. What is the force of…

A:

Q: We start with some review problems A crate of mass 49.0 kg rests on a level surface, with a…

A:

Q: In the figure, the coefficient of kinetic friction between m1-2.00 kg and the table is u-0.200. The…

A:

Q: A 1.0-kg block slides on a rough horizontal surface. A force, P = 9.0 N, is applied to the block at…

A: Given that,Mass of block : m = 1 (kg)Applied force on block :P =9 (N)Acceleration of block along the…

Q: A worker with mass m = 70 kg is trying to stretch his muscles with the help of a vertical wall.…

A: Given,  Mass, m = 70 Kg Force exerted by each hand on the wall is F = 70 N Total force exerted on…

Q: A person pushes a 0.20 kg lunch tray across a table, and it slows down as it slides because of…

A: Mass of lunch tray = 0.2 kg  Coefficient of static friction = 0.15  Coefficient of kinetic friction…

Q: Three objects with masses m1= 2.0 kg, m2= 4.0 kg, and m3= 6.0 kg, respectively, are attached by…

A:

Q: man pushes a 49 kg block of ice in the positive direction across a frozen lake as shown in the…

A:

Q: cord pulls an 7.0 kg block across a horizontal floor at constant velocity.The coefficient of kinetic…

A: Given values:- Mass of the block,(m)=7 kg ----(1) Coefficient of the kinetic friction,(μk)=0.21…

Q: Two blocks A and B with mA = 1.1 kg and mB = 0.88 kg are connected by a string of negligible mass.…

A: The objective of the question is to find the acceleration of the blocks and the tension in the…

Q: Q: A normal walking speed is around 2.0 m/s . How much time t does it take the box to reach this…

A:

Q: m₁ 30° m2 60° Two blocks of masses m1 = 6 kg and m2 = 2 kg are on either side of the wedge shown in…

A: Masses of blocks m1 = 6 kg and m2 = 2 kg to find - Magnitude of acceleration and tension in the…

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 11.0 kg and the…

A: Mass of block A, mA = 11 kg Coefficient of kinetic friction, μ = 0.170 Angle of inclination, θ = 34°…

Q: Two horizontal forces, F and F₂, are acting on a box, but only is shown in the drawing. F₂ can point…

A:

Q: In the diagram, all masses and angle are given. The pulleys and the string are ideal. The tension of…

A: We are given system of 3 masses. We are also given angle of inclination. We find the relation…

Q: Ross and Rachel are fighting if they were on a break. Ross is trying to get his stuff weighing 150.…

A:

Q: A constant applied force F, of 15.0 N pushes a box with a mass m = 7.00 kg a distance x = 15.0 m…

A: Given: Applied force Fp=15.0 N. Mass of the block m=7.0 kg. Distance traveled by block x=15.0 m. The…

Q: The coefficient of static friction between a sled and the snow is 0.3, with a coefficient of kinetic…

A:

Q: A 78 kg crate rests on a rough horizontal surface. The coefficient of static friction and…

A: Mass (m) = 78 kg coefficient of static friction and coefficient of kinetic friction are 0.3 and 0.2…

Q: A 4 kg block is sliding down a vertical wall while being pushed by an external force as shown in the…

A:

Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A: Given Data : The mass of the crate is given as m = 27.1 Kg. The force applied to the crate is given…

Q: Cable A has a force of 23 N along with it, what must be the tensions in cable C and B for there to…

A:

Q: Three blocks (as shown in the figure) are released from rest and they start to accelerate with a…

A: Step 1: here we have derived the equation of motion of the masses Step 2: here we have calculated…

Q: box with mass m = 3.25 kg rests on the top of a bar. The coefficient of static friction between the…

A: As per our guidelines, we are supposed to answer only first three subparts in case of multiple…

Q: the minimum force F required to hold m₁ against m₂? m2

A: Image: Two blocks with masses m₁ = 24.8 kg and m₂ = 97.6 kg, shown in the figure, are free to move.…

Q: The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope…

A:

Q: 270 N 50°7 B 400 N 30 D 30

A:

Q: Find the tension in each of the three cables (in N) supporting the traffic light if it weighs 3.87 x…

A:

Q: A block with mass m = 5 kg is moving on a rough horizontal surface under the influence of a…

A:

Q: The 66-m microwave transmission tower is steadied by three guy cables as shown. Cable AB carries a…

A:

Q: a Cable 1 Cable 2- m

A: mass = m = 12 kg =  140 35 0

Q: A block having a mass of m = 19.5 kg is suspended via two cables as shown in the figure. The angles…

A:

Q: Two blocks A and B with mA = 1.1 kg and mB = 0.88 kg are connected by a string of negligible mass.…

A: The objective of the question is to understand how the tension in the string connecting two blocks A…

Q: In the diagram, all masses and angle are given. The pulleys and the string are ideal. The tension of…

A:

Q: A 1000-kg elevator is rising and its speed is increasing at 3 m/s². The tension force of the cable…

A: Given that Mass of the elevator (M) =1000kg Acceleration (a) =3m/s2 Acceleration due to gravity (g)…

Q: We start with some review problems A crate of mass 46.1 kg rests on a level surface, with a…

A: The mass of the crate is 46.1 kg. The coefficient of the kinetic friction is 0.234. The applied…

Q: Two horizontal forces, and 2, are acting on a box, but only is shown in the drawing. F₂ can point…

A:

Q: Sammy is doing a strength testing session on the turf in preparation for the upcoming basketball…

A: Mass of sled (m) = 105 kgCoefficient of static friction (us) = 0.3Sammy apply only horizontal…

Q: 9. A large box is pulled by a person with a force as shown in the figure. The angle 8 = 21°. What is…

A:

Q: Mary applies a force of 71 N to push a box with an acceleration of 0.41 m/s². When she increases the…

A:

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!