When a body is in equilibrium. ( choose one) 1. must have zero momentum 2. no forces can be acting on it 3. may be accelerating uniformly 4. vector sum of forces acting on it must be zero

Q: 13. A large truck and a very small car have a head-on collision. The change in momentum of the truck…

A: Let us consider, Mass of truck, M1 , velocity of truck, u1, Mass of car, M2 , and velocity of car,…

Q: A car heading north collides at an intersection with a truck heading east. Truck and car have equal…

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Q: A father (mF = 90 kg) and his daughter (mD= 42 kg) stand on a flat frozen lake of negligible…

A: Given data: Mass of father (mf ) = 90 kg Mass of daughter (md ) = 42 kg In the given problem,  there…

Q: I. A piece of crumpled paper and a feather hit the ground at the same time II. Flight time depends…

A: Answer  option(B) I and III

Q: A 6.483E+3-kg truck moving east at 15.8 m/s collides with a 1.298E+3-kg car moving west at 28.6 m/s.…

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Q: During a perfectly Elastic Collision (without the presence of any external forces), Kinetic Energy…

A: To Determine During a perfectly Elastic Collision (without the presence of any external forces),…

Q: If you free the cork in a highly pressurized champagne bottle, the resulting launch of the cork…

A:

Q: 4)A large Mass mA = 2.50 kg travelling at 25.0 m/s crashes head-on into a smaller mass m which is…

A: a) Collisions conserve momentum mAvA+mBvB=mAv'A+mBv'B Substitute 2.50 kg×25.0 ms+7.50 kg×0 ms=-2.50…

Q: Momentum will be conserved in a two-body collision   only if the kinetic energy of the system is…

A: Conservation of linear Momentum held true for every type of collisions that can be elastic or…

Q: A bullet having a mass of 0.05 kg, moving with a velocity of 400 m/s penetrates a distance o 0.1 m…

A: According to Work Energy Theorem the work done in a dynamic system is equal to change in kinetic…

Q: An astronaut in her space suit has a total mass of 87.0 kg, including suit and oxygen tank. Her…

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Q: A 0.4 kg particle initially at rest, accelerates with a magnitude of 3.5 m/s². Find the momentum at…

A: Given data:  Mass (m) = 0.4 kg Initial velocity (Vi) = 0 m/s Acceleration (a) = 3.5 m/s2 Required:…

Q: While chasing an armed suspect into an ice rink, a police constable is shot. Fortunately, the…

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Q: A 3.039E+3-kg truck moving east at 10.4 m/s collides with a 1.808E+3-kg car moving west at 55.0 m/s.…

A: Given: Mass of truck, M=3.039×103-kg moving east at speed  U = 10.4 m/s  Mass of car, m=1.808×103-kg…

Q: A running back with a mass of 72 kg and a speed of 7 m/s collides with, and is held by, a 108-kg…

A: Given data The mass of the person is given as m1 = 72 kg. The initial speed is given as u1 = 7 m/s.…

Q: A 3000-kg truck moving rightward with a speed of 5 km/hr collides head-on with a 1000-kg car moving…

A: According to the momentum conservation principle, the total momentum of the system is conserved. It…

Q: time of contact between ball and groune A machine qun fires a bullet of mass 50 gm with elocity 1000…

A: Given that, Mass of bullet = 50 gm Velocity = 1000 m/s Force = 200 N Time = 60 s

Q: 2) In Figure, mass m, = 1 kg with a velocity v 15 m/s moving in x direction makes elastic collision…

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Q: A dog, with a mass of 155 kg, jumps horizontally at a speed of 6.0 m / s in a boat that is floating…

A: Given that, Mass of a dog, m1 = 155 kg Speed of the dog, u1 = 6 m/s Initially, the boat was at rest…

Q: A wooden block (0.50 kg) is at rest on top of the table when an object collided with it. The object…

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Q: A 70.9-kg boy and a 43.2-kg girl, both wearing skates face each other at rest on a skating rink. The…

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Q: Which of the following has more momentum? A jeepney at rest or a student running to attend his…

A: Momentum is directly proportional to the mass and velocity. p=mv

Q: A truck with a mass of 1100 kg moving at 30 m/s rear ends a 800 kg car that is initially moving at…

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Q: Ball 1 has a mass of 2.0 kg and is suspended with a 3.0 m rope from a post so that the ball is…

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Q: 1. A 3 N baseball moving left toward the batter with a velocity of 15 m/s is struck with a bat which…

A: weight of ball = w = m g = 3 N mass = m = 39.8= 0.306 kg initial velocity = V0= - 15 m/s ( -ve is…

Q: 37. Suppose that an object is pushed with a steady force along a frictionless surface. When you…

A: Step1 - Finding out what we will get by given multiplications.              Let us suppose we get a…

Q: A truck with a mass of 1320 kg and moving with a speed of 12.0 m/s rear-ends a 703 kg car stopped at…

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Q: 2- Two couples act on the frame. If the resultant couple moment is to be zero, determine the…

A: In this problem, the distance d is calculated by taking moment equilibrium about point A.

Q: A group of people are pushing a stalled car. If they push with a net force of 349 newtons for 12…

A: In the question it is said that there are more than 2 people and all all pushing a stalled car with…

Q: Two cars collide at an intersection. If the cars do not stick together,can we conclude that their…

A: Collision of two cars

Q: Two forces F, and F, produce the same impulse on two different objects. The magnitude of th 5.9 ms,…

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Q: a soft surface increases the time interval of the change of momentum, which reduce the force on an…

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Q: A 1.0 kg ball moving at 2 m/s in the +x-direction collides head-on with a 2 kg ball moving at 3 m/s…

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Q: While playing basketball in PE class, Logan lost his balance after making a lay-up and colliding…

A: Given:  (a) m = 74 kg  u = 7.6 m/s  v = 0 m/s t = 0.16 s  (b)  t = 0.0080 s

Q: and is in contact with the player's head for 7.1 ms, determine the following. (a) direction of the…

A: Given  The initial component of the velocity in the x-direction is Vix = 7.7 m/s. The final…

Q: A 1080-kg car has a velocity of 28.0 m/s, 30.0⁰ north of east. A second car has a mass of 1630 kg…

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Q: The 600 kg car has 2-times the mass of the 300 kg car. How does the momentums differ? The 1200 kg…

A: Momentum is defined as product of mass and velocity.  P = mv Assume velocity is constant.  P ∝ m…

Q: A 7.500 E+3-kg truck moving east at 10.3 m/s collides with a 2.500 E+3-kg car moving west at 35.0…

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Q: If a ball is projected upward from the ground with ten units of momentum, what is the momentum of…

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Q: 2000 kg car at 50 km/h. He diverts his attention from the road to text a friend a

A: GivenFor car 1m1=2000 kgu1=50 km/hFor Car 2m2=1000 kgAfter collision both car moving at same speed,…

Q: Before collision, Car A and B we're initially travelling West and Southward respectively. The…

A: Given: Mass of car A mA=1400 kg Mass of car B mB=2000 kg. Car A speed = 30 m/s.

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: