Body A in the figure weighs 96.0 N, and body B weighs 16.0 N. The coefficients of friction between A and the incline are U, -0.590 and Mk-0.250. Angle 0 is 28.0°. Let the positive direction of an x-axis be up the incline. What is the acceleration of A if A is initially (a) at rest, (b) moving up the incline, and (c) moving down the incline? (a) Number -29.069 (b) Number -4.397 (c) Number 0.689 Units Frictionless, massless pulley- N Units m/s^2 Units m/s^2 B

Q: A flea jumps by exerting a force of 1.32 x 10 N straight down on the ground. A breeze blowing on the…

A: force exerted by flea = 1.32 x 10-5 N  down wardbut according Newtons third lawforce acting on flea…

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

A: Write the given values with the suitable variables. a=1.21 m/s2m=102.9 kg Here, a is the…

Q: The velocities of m1 and m2 are V1 and V2 and it is V1>0 and V2  2*a3=a1-a2

A:

Q: Fig. 2 F1 +y 55.0 - +x 54.0 N F2 2. Fig. 2 shows a 25.0-kg crate that is initially at rest. Note…

A: Given: Mass of crate: 25 kg kinetic friction: μk=0.350 Force F1 has two components in x and y…

Q: After rounding second base, a baseball player with a mass of 77 kg slides into third base. The…

A:

Q: If the elevator's acceleration had a magnitude of g in the upward direction, what would the normal…

A: mass= m = 4.25kg upward acceleration = a = g Normal force = ?

Q: A horizontal force of 85.2 N is applied to a 44.5 kg crate on a rough, level surface. if the crate…

A: Given data The magnitude of the horizontal force is given as FA = 85.2 N. The mass of the crate is…

Q: A block of mass m1 = 3.0 kg on a smooth inclined plane of angle 30◦ is connected, by a cord over a…

A:

Q: Two forces act on a 5.0 kg object. The net acceleration of the object is 2.5 m/s? in the +x…

A: Mass of object m= 5.0 kgkg. Acceleration of the object a = 2.5 m/s² F1 = 60N F1 makes an angle = 30°…

Q: Cynthia pulls horizontally on an old chest of drawers (m = 75.0 kg), sliding it across the floor.…

A: Given data: The mass of the chest of drawers is m=75.0 kg. The force of pull applied by Cynthia is…

Q: A box of mass m = 0.5 kg started to slide down from rest at an acceleration of 0.3 m / s ^ 2 on a…

A:

Q: A student's true weight is 407 N (magnitude), and apparent weight at a certain time is 515 N…

A: Given value--- true weight = 407 N. apparent weight = 516 N. We have to find--- Acceleration?

Q: An object with a mass of 10 kilograms slides down an inclined plane with an angle theta=30 degrees.…

A: To be given,mass of object, m=10 kgangle θ= 30°coefficient of friction =0.2

Q: Consider the folowing situation: A 2 kg box on an inclined frictionless table pulled up the incline…

A:

Q: Person A pulls on a rope that suspends person B, as shown in the figure. If person B and the…

A:

Q: A 44-kg box rests on the floor. The coefficients of static and kinetic friction between the bottom…

A:

Q: A block m1 = 10.0 kg rests on another block m2 = 50.0 kg. Block m1 is pushed at a respective angle…

A:

Q: An athlete pulls a box E of mass m = 70kg down an incline, as shown. The coefficients of friction…

A:

Q: wo blocks are connected by a string as shown. The inclination of the ramp is θ = 39° while the…

A: θ = 39° m1 = 7.8 kg m2 = 19.6 kg Friction is negligible. find a) Write an equation for the magnitude…

Q: A student tries to push a 30 kg desk across the room. She pushes at a downward angle of 33.2°…

A:

Q: Two blocks are connected by a string that goes over an ideal pulley as shown in the figure. The…

A: For Block A, Frictional force, Fk=μk.mA.g.sinθ, μk= Coefficient of kinetic friction Component of…

Q: Block A weighs 10 lb and block B weighs 3 lb. If B is moving downward with a velocity (VB)1 = 3 ft/s…

A:

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: how long (in seconds) will it take the block to reach its maximum height

A: Given data: The mass of the wooden block is: m=15.5 kg The angle of the wooden ramp is: θ=38.6∘ The…

Q: Consider a 9.74-kg box on a ramp angled at 47.7 degrees above the horizontal. The coefficient of…

A: m=9.74 kgθ=47.7°μs=0.415μk=0.161

Q: A box is initially sliding up a 32.5° incline at a speed of 13.0 m/s. The coefficients of friction…

A:

Q: A crate of mass 55.6kg is being transported on the flatbed of a pickup truck. The coefficient of…

A: Given data:     The mass of crate is: m = 55.6 kg The coefficient of kinetic friction is:  = 0.320…

Q: A car can accelerate at -3.80 m/s2 without skidding when coming to rest on a level road. What would…

A:

Q: Block B in the figure weighs 711 N. The coefficient of static friction between the block and table…

A: The weight of block B is: The coefficient of static friction is: The given angle is:

Q: You are pulling a 32 kg dresser up a ramp (inclined at an angle of 22 degrees) with an acceleration…

A:

Q: A boy has filled his toy box with all his favorite toys and it trying to drag it across the floor.…

A:

Q: Body A in the figure weighs 96 N, and body B weighs 16 N. The coefficients of friction between A and…

A: Given:  ωA=96N,  ωB=16N    μS=0.59, μk=0.25,  θ=28°

Q: onstant force of friction opposing your push of 75.0 N. As you push the box, it accelerates from…

A: Given: The mass of the object is 50 kg. The friction force is 75 N. The initial velocity of the…

Q: An elevator cabin has a mass of 364.1 kg, and the combined mass of the people inside the cabin is…

A:

Q: through the action of a single cable. The elevator has a weight of 2000 N. When the elevator is…

A: Given:-  An elevator’s motion is through the action of a single cable. The elevator has a weight of…

Q: A contestant in a winter games event pushes a 55.0 kg block of ice across a frozen lake as shown in…

A:

Q: A woman pushes a block of mass m = 25.0 kg up a rough plane sloped at an angle of θ = 20◦ by using…

A:

Q: A 1.9 kg otter starts from rest at the top of a muddy incline 84.1 cm long and slides down to the…

A: Given that, The mass of otter : m = 1.9 (kg)The length of muddy inclination : d = 84.1 (cm)The time…

Q: An elevator cab that weighs 27.3 kN moves upward. What is the tension in the cable if the cab's…

A: Given:Weight, W = 27.3 kN

Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P =…

A: Given: The mass of the object is 5.1 kg. P→=-2.1i^+4.25k^ N The velocity of the object is constant.

Q: You bring a bathroom scale onto an elevator and press "up". Your mass is 65 kg. If the bathroom…

A: given actual mass of person(m)=65 kg Weight observed by bathroom scale(w)=750 N Mass of bag =0.1…

Q: You are standing on a bathroom scale inside an elevator. Your weight is 144 lb, but the reading of…

A: Solution: Given: 1 lb (weight) = 4.448 N 1 lb (mass) = 0.4536 kg g = gravitational acceleration =…

Q: A 40 kg wooden crate is being pulled across a wooden surface by a force (of magnitude F) that is…

A: Mass of the wooden crate is M = 40 kg  Coefficient of kinetic friction is uk = 0.3  Coefficient of…

Q: A box of mass 15.7 kg slides down an inclined plane without friction. If the acceleration, a, of the…

A: Given data: Mass of box, m=15.7 kg Acceleration, a=4.1 m/s2

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: