A 40 kg object's initial velocity is 5 m/s right. After 3 seconds, the velocity is 20 m/s right. Find the net force acting on the object.

Q: A girl weighing 45kg is standing on the floor, exerting a downward force of 200N on the floor. The…

A: mass of the girl = 45 kg  g= 10 m /s2 mg = 450 N BUT  girl applied only 200 N force . means floor is…

Q: When two objects interact by exerting forces on each other, the forces are said to be a(n) pair.

A: Given that:- Two objects interact by exerting forces on each other.

Q: What net force acts on the horizontal component of the motion of a projectile? N= newton, a unit of…

A: Projectile motion is the motion that an object of mass m undergoes if it is thrown at an angle θ…

Q: If an object is in motion, why can’t you conclude that it must be experiencing a net force?

A: If an object is in motion, it is not mandatory that the object will experience a force. When an…

Q: If you know all of the forces acting on a moving object, can you tell in which direction the object…

A: Several forces acting on a body

Q: The only external force acting on the system is: • ↑ m2 m1 Ay

A: Forces acting on the system is gravity and tension. Tension is the internal force.

Q: A boy stits at rest on the floor. Which of the following statements are true? Check all that apply.…

A: Force of gravity (Weight) is acting downwards. Normal force acts upwards. Even though normal force…

Q: Two forces of 3 N and 12 N act on a body simultaneously. The net force on the body is 3 N 12 N 15…

A:

Q: A 3.0 kg object is moving to the right at 4.0 m/s at time t = 0. It experiences a force F(t) = 3t2…

A:

Q: A 9 kg block experiences a net force in the opposite direction of its velocity for 1 s. Its velocity…

A: Given that mass of the block and decrease in velocity in opposite direction by the net force and…

Q: You swing a bat and hit a heavy box with a force of 1600 N. If the box moves when you hit it, the…

A: Given data: The force exerted by the bat on the box F = 1600 N

Q: Superman and Batman are on a sheet of iče, preparing for battle. Superman has a mass of 94 kg, and…

A: Given:- mass of the superman = 94 kg  mass of the badman = 117 kg   The force applied by superman on…

Q: A 20 kg object is having an acceleration of 4 m/s in the North direction; the net force acting on…

A: The force F acting on an object of mass m having acceleration a is given by, F = ma. The direction…

Q: A boy has a mass of 70 kg. He jumps down by 1m and hits ground 0.02 s. If he did not bend his knees,…

A:

Q: A 30kg object is pushed to the right with a force of 200N on a surface with a coefficient of kinetic…

A: Given: mass of object m = 30 kg. Force applied F = 200 N Coefficient of kinetic friction μk=0.4

Q: A shopper in a supermarket pushes a loaded cart with a horizontal force of 15.0 N. The cart has a…

A:

Q: Jimmy's heart accelerates 2.4 x 10°kg of blood from 0.15 m/s to 0.32 m/s over an elapsed time of…

A: This question is based on Laws of motion topic. We need to know equation of motion and force formula…

Q: A fire hose ejects water at the rate of 60kg of water per second at a velocity of 40 m/a. With what…

A: From Newton's second law of motion, F=dpdt   =mvf-mvi∆t…

Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A: Given data:  Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 45.3 m/s Time interval (Δt) = 6.11…

Q: ect is ration of 4 m/s in the North directione the net force acting on the objectis Select oner Oa…

A: 1)  we know that Force= mass * acceleration here , mass = 20kg             acceleration =4 m/s2…

Q: Identify the action-reaction pairs of forces for the following situations (a) You step off a curb…

A: a) Action is-Step off a curb and the Reaction is-earth meets your foot-the curb pushes back on your…

Q: A heavy crate is pushed across a rough surface. The force that is ultimately responsible for the…

A: Given:

Q: Two teams are playing tug-of-war, each team has five members. The applied forces on the rope are as…

A: Given in question : Forces by teams are -…

Q: A 75 kg woman on roller skates pushes a 25 kg girl, also on roller skates, with a force of 40 N. The…

A: According to NEWTON THIRD LAW action has equal and opposite reaction. So when woman pushes a girl…

Q: A net force of 1.0 N acts on a 2.0 kg object, initially at rest, for 2.0 sec. Find the distance it…

A:

Q: Two tug boats are pushing an ocean liner, as shown in Figure . Each boat is exerting a force of 400…

A: Each force = 400 pounds

Q: Q5 A force of 12 N pulls a block of mass 3.5 kg through a rope of mass 0.5 kg . The block is resting…

A:

Q: A football player kicks a football with a force of 400 N, north direction. The football hits the…

A: Given : Force by which football player kicks the football = 400 N

Q: A 3.0-kg block being pulled across a table by a horizontal force of 80 N also experiences a…

A:

Q: In a Force vs. Acceleration experiment a cart is pulled by a hanging mass of 100 gm. The cart is…

A: Suppose that mass of the cart is M1 Mass of the hanging mass is M2=100 gm = 0.1 kg Acceleration of…

Q: If you exert a force F on an object, the force which the object exerts on you will (choose one)…

A: To tell about the force

Q: Answer in terms of vectors i and j

A:

Q: person dives toward the bottom of a swimming pool, the bouyant force acting on her increases."

A: As per Archemede's principle  Buoyant force =weight of liquid displaced

Q: A 5 kg block is pulled across a table by a horizontal force of 40 N with a frictional force of 8 N…

A:

Q: A 50

A: Given values, Net force(F)=50N  Mass of object=20kg  Initial Velocity(u)=10m/sTime(t)=8sec

Q: A net force of 15 N exerted on a wooden block produces an acceleration of block is a. 75 kg O b. 10…

A: The acceleration of an object as produced by a net force is directly proportional to the magnitude…

Q: A 0.51 kg football is thrown with a velocityof 18 m/s to the right. A stationary receivercatches the…

A:

Q: An airplane has a mass of 3.39 × 104 kg and takes off under the influence of a constant net force of…

A: Given that mass of the airplane and constant net force and also given the mass of the pilot. Then We…

Q: A crate (100 kg) is in an elevator traveling downwards and slowing down at 6 m/s. Find the normal…

A: Take the upward direction to be positive. The forces acting on the crate are the weight of the crate…

Q: A 5.00 g projectile has a velocity of 255 m/s right. Find the force to stop this projectile in 1.45s

A: Given: Mass of the projectile m =5.00g=0.005kg Velocity v=255 m/s Time t =1.45s

Q: A 4000 kg car is traveling right at 10 m/s. Six seconds later it is traveling right at 40 m/s. Find…

A:

Q: A stationary object is under the effect of 24 N net force for 8 seconds. Since the mass of the…

A: From Newton's 2nd law , F=ma where F is force            m is mass             a is acceleration…

Q: A block weighing 100N shown at A is subjected to a horizontal force P = 100N. If the velocity of the…

A:

Q: You are riding a race car at a constant speed of 225 km/ h when you pass by another vehicle with a…

A: Answer Given Speed of first car s1 = 225 km/h Speed of second car s2 = 88 km/h

Q: A 60 kg block slides along the top of a 100 kg block.  The lighter block has an acceleration of 3.8…

A:

Q: A car of mass 1200 kg is accelerated from rest to a speed of 72km/hr in 40 seconds . Calculate the…

A: Given: The mass of the car is 1200 kg.             The final speed is 72 km/hr.              The…

Q: The combination of all the forces that act on an object is called the net force. True False

A:

Q: F: force of gravity P f: frictional force Ñ: normal force f <

A:

Q: A 1.8 kg ball experiences two forces simultaneously as shown. 78 N Fnet = 80.5N north 5.6° F? If the…

A:

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: