A running back with a mass of 80 kg and speed 8 m/s collides with, and is held by, a 120 kg defensive tackle going in the opposite direction. How fast must the tackle be going before the collision for their speed afterward to be zero?

Q: A 65.8-kg person throws a 0.0441 kg snowball forward with a ground speed of 32.5 m/s. A second…

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Q: If a 1780 kg train car on a one dimensional track, moving at 5 m/s north, hits and bounces off a…

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Q: A soccer player hits a 0.20 kg ball which is incoming with a speed 5 m/s. After the kick, the ball…

A: The average force is given by  F=∆p⇀∆t∆p⇀=change in momentum∆t=time interval

Q: A 750-kg car stopped at an intersection is rear- ended by a 1730-kg truck moving with a speed of…

A: Given data *The mass of the car is mc = 750 kg *The mass of the truck is mt = 1730 kg *The speed of…

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 the filming of an adventure movie, the 55.0-kg heroine makes a flying leap, grabbing her…

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Q: A 35 kg girl running 2.3 m/s jumps into a stationary 8.0 kg wagon. What is the speed of the…

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Q: A ball of mass (m) collides elastically with a second ball that is at rest, and recoils with a speed…

A: In elastic collision kinetic energy and momentum of system remains constant. Formula of final…

Q: During a concert, a 120 kg firework travels north at 80 m/s. Unfortunately, it collides with a…

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Q: a 1250 kg car travelling to the right at a speed of 20 m/s has a head-on collision with 4700 kg…

A: Concept used: In a perfectly inelastic collision, the objects get stuck together after collision and…

Q: Two cars of equal mass are approaching an intersection. One of the cars moves east at 13 m/s, the…

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Q: A 7150 kg truck traveling east at 5 m/s collides with a 1700 kg car traveling 300 south of west at…

A: Given quantities: mass of truck (M) = 7150 kg mass of car (m) = 1700 kg   Let, the initial velocity…

Q: Note: Take East as the positive direction. A(n) 88 kg fisherman jumps from a dock into a 132 kg…

A: Given : m = 88 kg M = 132 kg v = 4.5 m/s

Q: A body of mass 2 kg makes an elastic collision with a second body at rest and continues to move in…

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Q: A 72.0 kg halfback running north with a speed of 9.5 m/s is tackled by a 83.5 kg opponent running…

A: Mass of first player (m) = 72 kg Mass of second player (M) = 83.5 kg Speed of first player (u) = 9.5…

Q: A 1,368-kg van, stopped at a traffic light, is hit directly in the rear by a 897-kg car traveling…

A: Collision is an event in which two or more object interact and exert forces to each other. In every…

Q: Casey is driving a 1600 kg car toward the east. She goes through an intersection at a speed of 16…

A: given that, Casey is driving a 1600 kg car toward the east.  speed of 16 m/s (approximately 35 mph),…

Q: n the railroad freight yard, an empty freight car of mass m rolls along a straight level track at…

A: Given m1=m (mass of freight car) u1=1.10 m/s (initial velocity of freight car) m2=5.70m (mass of box…

Q: Two curling stones collide on an ice rink. Stone 1 has a mass of 16 kg and an initial velocity of…

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Q: a 8 kg bowling ball, moving at 10 m/s to the right, hits and bounces off a second bowling ball with…

A: given that, mass of ball moving right (m1) = 8kg mass of ball moving left(m2) = 5kg  Initial…

Q: At the intersection of El Roble road and Paseo Universitario road, a 1000 kg car A traveling east on…

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Q: A 5.4-kg fish swimming 1.0m/s swallows an absentminded 1.0-kg fish swimming toward it at a speed…

A: According to conservation of momentum for both the fishes,

Q: Before collision, Car A and B were initially traveling Westward and Southward, respectively. The…

A: Given data: The final velocity of the two entangled cars is, V= 13.682 m/s The mass of car A is, mA=…

Q: In a laboratory experiment, a 0.200 kg glider and a 0.400 kg glider are pushed towards each other…

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Q: A bus can reach a length of 30 m long with two trailers and they have a total mass of 28 × 103 kg.…

A: Given Data:Mass of the truckm1=12×103 kgInitial velocity of the truckv1i=?Initial velocity of…

Q: Consider the inelastic collision of truck with a staionary car.  The truck has a mass of 10,000 kg.…

A: Given- Mass of truck (mT) = 10,000 Kg Mass of car (mc) = 2000 Kg Velocity (vT)  when comes to…

Q: A car of mass m moving at a speed v, collides and couples with the back of a truck of mass 2m moving…

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Q: ) An 1800 kg car traveling north at 45 km/hr collides with an 1100 kg car  traveling east at 55…

A: Mass and velocity of car 1 m1=1800 kg, v1=45 km/hr=12.5 m/s and mass and velocity of car 2 m2=1100…

Q: A basketball bounces on a floor. The ball has a mass of 0.61 kg and is in contact with the floor for…

A: Given A basketball bounces on a floor. The ball has a mass of 0.61 kg and is in contact with the…

Q: before after A red SUV (mass = 2380-kg) coasting east at 15.3 m/s rear ends a purple station wagon…

A: Given: The mass of the SUV is 2380 kg. The initial velocity of the SUV is 15.3 m/s toward est. The…

Q: The stoplight had just changed and a 1,043 kg Cadillac had entered the intersection, heading north…

A: From conservation of momentum,  along y-axis, m1v1=m1+m2vfsinθ      .......(i) along x-axis,…

Q: A 1.65-kg falcon catches a 0.375-kg dove from behind in midair. What is their velocity after impact…

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Q: A 30-kg girl and a 40-kg boy are together, standing at rest on their ice skates on an ice skating…

A: Given data- Mass of the girl mg=30 kg Mass of the boy mb=40 kg Initially both were at rest thus…

Q: Collision Insurance! 6 kg car stopped at a traffic light is struck from the rear by a 953-kg car.…

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Q: A 80 kg person running at 6.9 m/s, catches up with a 60 kg person running away from him at 5.7 m/s,…

A: This problem can be solved by using principle of momentum conservation. Initial momentum of the…

Q: A pickup truck with mass of 2 000 kg is traveling eastbound at -16.0 m/s, while a compact car with…

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Q: A west bound 1500 kg car moving at 13.0 m/s collide with a north bound 2500 kg car moving at 20.0…

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Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest.