When the sum of the forces acting on an object is zero, its force acts on the object, it However, when a net velocity increases; stays still O velocity decreases; stays still velocity does not change; accelerates velocity increases; accelerates velocity decreases; accelerates

Q: A 4.00-kg object undergoes an acceleration given by a = (8.00 î + 4.0o j) m/s. (a) Find the…

A:

Q: An object moves in a straight line at a constant speed. Is it truethat there must be no forces of…

A: Moving at a constant speed does not mean that there are no forces acting on the object. It might be…

Q: Calculate the maximum allowable force that can be applied to stop a 1000 kg vehicle if the maximum…

A: Given:Mass, m = 1000 kgMaximum allowable acceleration, a = 2.5g = 2.5 x 9.8 = 24.5 m/s2.

Q: An acorn falls from a tree. Ignoring air resistance, what forces are on the acorn while it's…

A: Acorn is the small nut of the oak tree, that grows in a base shaped like a cup when acorn falls from…

Q: An object with a mass of 6.0 kg accelerates 4.0 m/s? when an unknown force is applied to it. What is…

A: Given Data:   m = 6 kg a = 4 m/sec2

Q: If not act any forces on a body, this means the body at rest. O False O True

A: Given  The statement is  if not act any forces on a body, this means the body at rest.

Q: A stone is thrown straight up. At the top of its path, the net force acting on it is O greater than…

A: When stone is thrown up , only gravitional force is acting on stone.

Q: Suppose an object is accelerated by a force of 100 N. Suddenly a second force of 100 N in the…

A: The option (c) is the correct answer.

Q: The applied force P is equal to 160N and the mass of the box is equal to 20 kg. Determine the…

A: Given:- The applied force P = 160 N  The mass of the box m= 20 kg  The coefficient of the kinetic…

Q: A 60. kg body has two forces acting on it. A 50. N force forward (0o) and a 40. N force backward…

A: The free-body diagram of the body is shown below. The net force acting on the body can be…

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: Does it matter which force we call the action and which force we call the reaction?…

A: According to Newton's third law of motion, Whenever two bodies interact with each other, the force…

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

A:

Q: A 8.00-kg object undergoes an acceleration given by a = (1.00 i + 8.00 j) m/s. (a) Find the…

A: (a) The expression for the force is, ∑F⇀=ma⇀∑F⇀=8.00 kg1.00 i^+8.00 j^ m/s2∑F⇀=8.00 i^+64.0 j^ N

Q: Find the force acting on a body if the mass equal ( 4.5 kg) and acceleration equal ( 3 m/sce2) * O…

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Q: A 1500 kg car moving at 20 km/h is accelerated ata constant rate of 4 m/s2up to a speed of 75…

A:

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: If both the mass of the body and the force acting on it are doubled, then acceleration---- Select…

A: Using newton's law force is given by,                          F = ma then, acceleration is,…

Q: Two teams are engaged in a tug-of-war. According to Newton’s third law, the red team pulls on the…

A:

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

A: Given:- m = 5 kg a = 3 m/s2

Q: 1. A 0.40 kg toy car moves at constant acceleration of 2.3 m/s?. Determine the net applied force…

A:

Q: As you catch a 0.14-kg ball it accelerates at −320 m>s2and comesto rest in your hand. What force…

A:

Q: Thirdy. Consider a block sliding down a rough ramp. Which of the following forces is the reaction…

A: Answer- (D) weight of the block

Q: A 2.5 kg toy car is being pulled by a boy using a string that makes an angle of 20 0 with the…

A:

Q: Support force exerted upon an object that is in contact with another object * O Compression Normal…

A: A force acting perpendicular to contact surfaces when two objects touch each other is called normal…

Q: A horizontal force F is exerted on a 20 kg box to slide it up at 30° incline. The friction force…

A:

Q: Four tug boats apply forces to an oil-rig as shown 40 kN 50 kN - 40 kN 30 kN

A:

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

A: Answer:- (d) Equal to 200 N    Because    We know that    According to Newton's third law of motion…

Q: A block rests on an inclined plane at an angle of 25.0 (N of E) . If the block is pushed with 10 N…

A:

Q: Determine the applied force required to accelerate a 3.25-kg object rightward with a constant…

A: Given data The mass is m= 3.25 kg The acceleration is a= 1.20 m/s2 The friction is f=18.2 N The…

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: When landing after a spectacular somersault, a 50.0 kg gymnast decelerates by pushing straight down…

A:

Q: If the net force acting on an object is zero, then which of the following is zero: velocity all of…

A:

Q: Suppose that the acceleration of an object is zero.  Does this mean that there are no forces acting…

A:

Q: If the acceleration of an object is zero, are no forces acting on it? Explain in words

A: Given , Acceleration of an object is zero.   We want to discuss about forces acting on it.

Q: When a certain force is applied to an object with a mass of 2 kg, its acceleration is 10.0 m/s2.…

A:

Q: What is the acceleration of the object . If 70 N force applied on a 20 kg object

A: Given that                   The mass of the object is (m) = 20Kg                   Force (F) = 70N

Q: Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an…

A: Given : m = 0.145 kg  a = 130 m/s2

Q: Thirdy. Consider a block sliding down a rough ramp. Which of the following forces is the reaction…

A:

Q: A net external force of 7.5 N is exerted upon a 4.65-kg object. If the object's initial velocity is…

A: Given that a net external force(FNet) of 7.5 N is exerted upon a 4.65-kg object. So, We have Where,…

Q: A constant force is applied to an object, causing the object to accelerate at 9.0 m/s²

A:

Q: t of mass 40 kg accelerate with the acceleration of 5 m/s^2. Find the net fo

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

Q: A constant net force acts on an object. The object moves with Select one: a. constant speed O b.…

A: Constant net force is exerted on the object.

Q: Two forces F1 and F2 act on a 5.00 kg object.If F1 20.0N and F2 15.0N, find the acceleration in (a)…

A:

Q: A mine shaft elevator and its payload have a combined mass of 1006 kg. Say the elevator is moving…

A: Given:mass, m=1006 kginitial velocity, u=20 m/sfinal velocity,v=0distance,s=45 mTo…

Q: A teacher moves a 16.9 kg desk across the room by applying a 188 N horizontal force. (u = 0.39) Find…

A: Given(s): Mass, m=16.9 kg Coefficient of friction, μ=0.39

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: