Calculate the magnitude of the normal force on a 15.0-kg block in the following circumstances: (a) The block is resting on a level surface. (b) The block is resting on a surface tilted up at a 30.0° angle with respect to the horizontal. (c) The block is resting on the floor of an elevator that is accelerating upwards at 3.00 m/s2. (d) The block is on a level surface and aforce of 125 N is exerted on it at an angle of 30.0° above the horizontal.

Q: istance of 6 meters from rest, the force F is then removed. If F = 800 N, compute the velocity of…

A: let v be the velocity when force F is removed. Normal force on the block  N=1500-Fsin30o…

Q: "A worker drags a crate across a factory floor by pulling on a rope tied to the crate. The worker…

A:

Q: A bird has a mass of 2.4 kg lands on the middle horizontal telephone wire, and depresses the wire…

A:

Q: A 2.5 kg block is placed on a rough plane inclined 40° with the horizontal. Coefficient of static…

A:

Q: move a large crate of mass 32.0 kg across a rough floor, with coefficient of kinetic friction…

A: According to Newton's second law F = ma So acceleration a = F/m

Q: A flatbed truck has a 2000.0 kg component of a pre-fab house placed on its flatbed. If the…

A: Given: Initial velocity,u=0 kmhr Final velocity, v=65.0 kmhr Distance, s=50.0 m Mass, m=2000 kg…

Q: A person moves a 85 kg object by applying a force F = 310 N at an angle of 30° above the horizontal.…

A:

Q: A 2.0-kg block is at rest on ramp which makes 20° with the horizontal.   (a) What is the force of…

A: Given - mass of block , m = 2.0 kg angle of inclination of ramp, θ = 20o acceleration due to…

Q: block vertically pushed up the wall by applying a force Fpush at an angle θ of 30.0° . The…

A: Given data The inclination between the wall and the force applied is θ = 30.0°. The coefficient of…

Q: Calculate the force required to pull a stuffed toy duck (mass m = 1.75 kg) at a constant velocity of…

A:

Q: A frictionless ramp is tilted 40 degrees above the horizontal and has a 15 kg block placed on it.…

A: Angle of ramp (θ) = 40o above the horizontal mass (m) = 15 kg

Q: If a 2.89 kg object is placed on a horizontal surface, what is its magnitude of acceleration if the…

A:

Q: (a) At a construction site, a pallet of bricks is to be suspended by attach- ing a rope to it and…

A:

Q: Two blocks A and B are released from rest on a 30° incline when they are 13 meters apart. The…

A: When an object tries to move across a surface then the frictional force exerted by the surface is…

Q: o that Fair = c v, c

A:

Q: A car of mass 1550 kg coasts down a hill inclined at an angle 5.000. The car is acted on by three…

A: Given data: Mass of the car m =1550 kg Angle θ=5°

Q: magnitudes.) (a) the force of kinetic friction (in N) N (b) the acceleration (in m/s2) m/s2 (c) the…

A:

Q: A box of mass m is pulled with a constant acceleration a along a horizontal frictionless floor by a…

A:

Q: A person , sunbathing on a warm day, is lying horizontally on the deck of a boat. Her mass is 59 kg,…

A: Given, Mass of person, m = 59 kg coefficient of static friction between the deck and her, μ = 0.7…

Q: (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her…

A:

Q: A metal box having a mass of 100.0kg is pulled along a level plane, at uniform speed, by a…

A: Answer:-  Given Mass of a metal box(m) = 100.0 kg  At uniform Speed by a horizontal rope applying a…

Q: A truck driving on a level highway is acted on by the following forces: a downward gravitational…

A: In the given question, Downward gravitational force (W) = 52 kN Upward contact force due to road (N)…

Q: The coefficients of static and kinetic friction between the 100-kg block and the inclined plane are…

A: Concept: The Schematic Diagram of the System is given below Here, W= Weight of the Block…

Q: If a 2.6 kg object is placed on a horizontal surface, what is its magnitude of acceleration if the…

A: Given value--- mass = 2.6 kg. coefficient of kinetic friction = 0.448 . applied force = 31.5 N.…

Q: A 6.51 kg mass is released from rest while on and incline of 52.19 degrees. If the coefficient of…

A: It is given that,

Q: If a 3.17 kg object is placed on a horizontal surface, what is its magnitude of acceleration if the…

A:

Q: W To hang a 6.00 kg pot of flowers, two wires are used-one attached horizontally to a wall, the…

A: The problem is based on the concept of finding out the components i.e. x and y components of any…

Q: A 28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 79.0 N is…

A:

Q: A person , sunbathing on a warm day, is lying horizontally on the deck of a boat. Her mass is 59 kg,…

A: Given,mass of the person, m = 59 kgstatic friction between the deck and her, μ = 0.70

Q: a mass is given an initial velocity v0= 3.4ms up a 15 degree incline.  a) if the coefficient of…

A: Given data: Initial velocity of the mass, vo=3.4 m/s Inclined angle, θ=15o Coefficient of kinetics…

Q: A 244N crate resting on a plane inclined 35 - degrees with the horizontal requires a 26.1N force to…

A: Given data: The weight of crate is W=244 N. The inclination of plane is α=35°. The inclination of…

Q: Ben Laborin exerts a force on an 86-kg crate of books to push it up the ramp of the loading dock at…

A: Where, f= Friction force N= normal force Fapplied= applied force

Q: 3. Addition of vectors. Vector r1 has a magnitude of 8.4 km and points due East. Vector r2 has a…

A: 3) Given, Vector r1→=8.4 km towards east. Vector r2→=12.6 km towards north.   Find addition of given…

Q: If a 2.55 kg object is placed on a horizontal surface, what is its magnitude of acceleration if the…

A: Given- Mass of object (m) = 2.55 Kg Kinetic friction (μk) = 0.359 Applied force (F) = 34.9 N Angle…

Q: A 2.0-kg block is on a ramp that makes an angle of 30 degrees with the horizontal.     (a) When…

A: Given data:  Mass of block (m) = 2.0 kg Angle (θ) = 30° Force applied (F) = 15 N

Q: A block whose weight is 35.0 N rests on a horizontal table. A horizontal force of 50 N is applied to…

A: Here, we calculate  the blocks acceleration  given as follow;

Q: You are traveling in your car at a speed of 86.0 km/h when you slam on your brakes. The coefficient…

A: Required distance travelled before stopping of the car.

Q: A block with a mass of 3.00 kg begins at rest and moves down a lengthy ramp inclined at 22.0 degrees…

A:

Q: a 331N crate resting on a plane inclined 31 degrees with the horizontal requires a 20.2N force to…

A:

Q: In the figure, a block of mass m= 6.15 kg is pulled along a horizontal frictionless floor by a cord…

A:

Q: dockworker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal…

A: GivenHorizontal force applied on block, F=80 NDistance moved by block, s=11 mInitial velocity of…

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: