Write a short note on Center of mass.

Q: What happens to projectile when it dissociates in air?

A: When a projectile is thrown, it follows a parabolic path. So, if it dissociates somewhere in the…

Q: A 60-kg running back moving north at 4.0 m/s experiences a southward impulse of 300 N•s. What is the…

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Q: What is relation between impulse and momentum?

A: The chanage in momentum of an object equals its impulse.

Q: Calculate the height (in feet) of a building where a 475-g ball was released from rest and strikes…

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Q: A 57 g tennis ball is served at 45 m/s. If the ball started from rest, what impulse was applied to…

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Q: Consider a frictionless track as shown in the figure below. A block of mass m, 4.55 kg is released…

A: According to the conservation of energy, 12mv2=mgyi12v2=gyiv=2gyi Substitute the values, to find the…

Q: Two 78.5-kg hockey players skating at 4.47 m>s collide and sticktogether. If the angle between…

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Q: Why Does A Gun Recoil When A Bullet Is Fired?

A: This is due to the Newton's third law of motion. When a bullet is fired from a gun, the gun exerts a…

Q: at Jum [S]. INnen he cosicon with 5. Skater A, with a man of 72 kg s moving Skater B, with a mass of…

A: In this question we have to find the velocity of the skaters. Please give positive feedback if the…

Q: When the center of mass of a system of particles is at the origin?

A: To explain: The center of mass of a system of particles is at the origin.

Q: A 0.145-kg baseball pitched horizontally at 27.0m/s strikes a bat. If the contact time between bat…

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Q: What happens to the kinetic energy after the collision?

A: A collision is an event where momentum or kinetic energy is transferred from one object to another.…

Q: A 1000 kg car is moving at 10 m/s collides to a 1200-kg car which is moving from the o p posite…

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Q: Discuss the elastic collision between two particles in lab system.

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Q: What is an elastic collision?

A: The collision in which there is no loss of kinetic energy in other forms is called elastic…

Q: Calculate the impulse on s body at rest when acted upon by a force of 9 N for 3.2 seconds.

A: Introduction :   In this question we are provided it value of force and time . With these data we…

Q: What is the final momentum after the ball hits the jello wall?

A: The final momentum of the ball (pfinal) can be determined by the multiplication of the given mass m…

Q: How is an elastic collision different than an inelastic collision?

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Q: How does impulse differ from force?

A: Formula for the impulse in term of momentum is:

Q: Direct central impact occurs between a 20lb body moving with a velocity of 3fps and a 30 lb body…

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Q: An 8.0 g bullet is fired into a 2.5 kg pendulum bob initially at rest and becomes embedded in it.…

A: The expression for the kinetic energy and potential energy is:

Q: How is elastic/inelastic collision achieved in terms of mass and velocities?

A: In collisions of elastic nature, two objects bang into each other without any loss in the kinetic…

Q: When does elastic collision occur?

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Q: tal momentum

A: Momentum conserved in absence of external force

Q: A 3-kg ball moving to the right at 4 m/s strikes a 5-kg ball moving left at 3 m/s.  What are the…

A: The momentum is conserved for the elastic collision and the coefficient of restitution is 1.

Q: A tennis ball and a bag filled with sand have the same mass. They are dropped from the same height…

A: Impulse is the change of momentum of an object when the object is acted upon by a force for an…

Q: What happens to the kinetic energy that is lost during an inelastic collision?

A: The collision is a phenomenon in which two objects collide with either elastic collision or…

Q: In terms of impulse and momentum, why do airbags in car reduce the chances of injury in accident?

A: The airbags provided inside a car reduce the average force that is applied for a very short duration…

Q: A 5 kg rifle recoils with a speed of 8 m/s when a bullet with a mass of 64 g is fired. The muzzle…

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Q: Consider a frictionless track as shown in the figure below. A block of mass m, = 4.40 kg is released…

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Q: Two hockey players collide at center ice and together slide away from where the hit. Because they…

A: inelastic      ii=machanical energy is not conserved

Q: Difference between elastic and inelastic collisions.

A: Elastic CollisionAn elastic collision can be defined as a state where there is no net loss in…

Q: Two rigid bodies, moving toward each other as shown in the picture, collide. At collision, one makes…

A: Dear student For perfectly elastic collision, the emergy remains conserved. Also for any collision,…

Q: A 5-kg big fish is swimming at 1 m/s towards a 1-kg small fish at rest as shown in the figure. What…

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Q: Calculate the maximum height to which m, rises after the elastic collision.

A: Data provided in the question; Mass of block 1 Mass of block 2 Height from which block 1 is…

Q: A girt of mass standing on a plank of mass, Both are originally at rest on a fraen lake that…

A: Given, Mass of girl,mG Mass of Plank,mP Velocity of girl with respect to plank,vGP

Q: Consider a frictionless track as shown in the figure below. A block of mass m, = 5.35 kg is released…

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Q: A billiard ball rolling across a table at 1.50 m/s makes a headonelastic collision with an identical…

A: Part A:

Q: what is the process in deriving Vzf por mouing tar get involving elastic collision

A: Given:- what is the process of deriving V2f For a moving target involving elastic collision?…

Q: Describe the momentum of an elastic collision and an inelastic collision

A: Impulses of the colliding bodies are nothing but changes in momentum of colliding bodies. Hence…

Q: Jerome plays middle linebacker for South's varsity football team. In a game against cross-town rival…

A: Write the given values with the suitable variables. m=82 kgu=5.6 m/sv=-2.5 m/s Here, m is the mass,…