pebble of mass 0.05 kg is thrown vertically upwards Give the magnitude and direction of net force on the pebble (a) during its upward motion (b) during its downward motion (c) at the highest point where it is momentarily rest Do your answers change if the pebble were thrown at an angle of say 45∘ horizontal direction. Ignore air resistance.

Q: Two crates A and B are connected by a light rope along the horizontal surface. Mass of A is 4 kg and…

A:

Q: A force 450 N pushes on a 36.7 kg box at an angle of 50° from the horizontal. Starting from rest ,…

A: Given: F=450 Nm = 36.7 kgθ = 50°u = 0 m/sv =18.8 m/st=7.6 s

Q: Matt, in the foreground of Fig. 4–39, is able to move thelarge truck because(a) he is stronger than…

A: An object will move in a particular direction, when there is a net force acting on the object in…

Q: If the object of mass 35 kg accelerate on the horizontal plane 7 m/s^2 . Find the net force on the

A: Mass of object (m) = 35 kg Acceleration (a) = 7 m/s2

Q: A 2.0-kg block initially at rest is pulled to the right along a horizontal, frictionless surface by…

A:

Q: A ball moving with a velocity of 5m/s in the east direction, is acted upon by a pair of balanced…

A: Newton's laws of motion govern the motion of bodies. The first law defines the concept of a force,…

Q: A block of m 20.0 kg is placed on a plane incline at angle a-37.1 and is connected to a second…

A: Given: m1=20.0 kgα=37.1°μ=0.30s=12.0 mt=3.00s

Q: A child pulls on a wagon handle at an angle of 23.8 degrees above the horizontal with a force of 68…

A:

Q: 2. A 32 N force, parallel to the incline, is required to push a certain crate at constant velocity…

A: According to guideline , we need to solve only first Question ? Given that  A 32 N force, parallel…

Q: person is standing on a building with a height h. His mass is m and acceleration due to gravity is…

A: Angular momentum L = Iw

Q: A 2.00 kg hanging block pulls a 3.00 kg block along a very smooth table. Compute for the…

A:

Q: a constant horizontal force is applied toblock A, which pushes against block B with a 20.0 N force…

A:

Q: A NinjaVan delivery man is pushing a 77-kg box of a parcel by a force of 342-N at an angle 35° to…

A:

Q: An object with a mass of 1.5 Kg accelerates 10.0 m/s2 when an unknown force is applied to it. What…

A:

Q: -The force exerted by the wind on the sails of a sailboat is 330 N north. The water exerts a force…

A: Given situation can be picturized as follows:

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

A:

Q: If an object is not moving, does that mean that there are no forces acting on it? Explain.

A: An object is not moving

Q: An 18-kg child is riding in a child-restraint chair, securely fastened to the seat of a car (Fig.…

A:

Q: A 30.0-kg object slides down a slope which is inclined 27.0º to the horizontal. The normal force on…

A: The normal force acts on the object is given by N=mgcosθ=30.0 kg9.80 m/s2cos27.0°=262 N

Q: A block of mass 40 kg.accelerate with the 3 m/s^2 by the horizontal force F and the coefficient of…

A: We know that the newton's second is given as Fnet= ma where m is the mass. a is the acceleration of…

Q: A car is traveling up a hill that is inclined at an angle θ above the horizontal. Determine the…

A: Given:Angle of inclination for part a = 18 degreesAngle of inclination for part b = 36 degrees

Q: Two packing crates of masses 10.0 kg and 5.00 kg are connected by a light string that passes over a…

A:

Q: 2.3. A crate of mass 50 kg slides on a horizontal floor under the action of an applied horizontal…

A: Given: (a) Mass of the crate: m=50 [kg] Applied force: Fa=200 [N] Frictional force: Ff=120 [N] (b)…

Q: A lady at the airport drags a 12.5-kg suitcase along a rough level floor with a force of 50.0 N at…

A:

Q: A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at…

A:

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

A:

Q: When an object falls freely under the influence of gravity there is a net force mg exerted on it by…

A:

Q: A student decides to move a box of books into her dormitoryroom by pulling on a rope attached to the…

A: Part :A

Q: A block of mass m,- 13.4 kg is on a frictionless table to the left of a second block of mass m,-…

A:

Q: 108. Shown below is a 10.0-kg block being pushed by a horizontal force F of magnitude 200.0 N. The…

A:

Q: A 1,485-kg car is on an icy driveway inclined at an angle θθ = 23.75°. Determine the acceleration of…

A: Given: The mass of the car is 1485 kg. The angle of the inclination is 23.75o.

Q: A car with a mass of 1.3x10° kg is skidding to a stop along a horizontal surface. The car…

A:

Q: 8. A 5.0-kg bucket of water is raised from a well by a rope. If the upward acceleration of the…

A:

Q: noment of force respect to point (A), two forces xt ng. 8m 3m 50N Im A 30N

A: Working formula: Moment of a force F with respect to a point(say O)is equal to M=Fr where r is the…

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

A: Given  Force exerted by worker F=200N angle q=30 f=100N Mass of crate m=200kg

Q: elevator mass m moving upward has two forces acting on it: the upward force of tension in the cable…

A:

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

A: Given : F = 80 N vo = 0 (because block starts from rest) x = 20 m t = 9 s

Q: Two crates, of mass 65 kg and 125 kg, are in contact and at rest on a frictionless horizontal…

A:

Q: A horizontal force of 5.0 N accelerates a 4.0-kg mass, from rest, at a rate of 0.50 m/s2 in the…

A: Applied force  Mass Acceleration

Q: A sphere of mass 4.4 × 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the…

A: Write the given values with the suitable variables. m=4.4×10-4 kgθ=28° Here, m is the mass and θ is…

Q: A 4 kg box, pulled by a rope, is accelerated at 1.6 m/s2 horizontally across a floor. Assuming µk =…

A: mass of box = 4 kg a = 1.6 m/s2μ = 0.5 net force = ma  = 4 * 1.6  = 6.4 N

Q: The 50 lb crate shown below is acted upon by a force having a variable magnitude P = (20t) lb, where…

A:

Q: Two forces act on an 5 kg object: F1 = 60N applied at the origin in the direction of positive x-…

A:

Q: A 2.00-kg projectile is fired at an angle of 20.0°. What is the magnitude of the net force on the…

A: Given data: Mass (m) = 2.00 kg Angle (θ) = 20.0°  Air resistance is negligible Required: The…

Q: as a fish jump vertically out of the water, assume that only two significant forces act on it: an…

A:

Q: If an object is moving, is it possible for the net force acting on it to be zero? Explain in words

A: According to Newtown 2nd law if net force acting on body is zero then the body at rest will be at…

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: