Choose the BEST answer to the following: A big fish swims upon and swallows a small fish at rest. Right after lunch, the fattened big fish has a change in (a) speed. (b) momentum. (c) Both. (d) Neither.

Q: Why does sitting closest to the center of a vehicle provide the most comfortable ride in a bus…

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Q: Calculate the final velocity right after a 119 kg rugby player who is initially running at 7.55 m/s…

A: The given data are: m=119 kgu=7.55 m/sF=18100 Nt=5.5×10-2 s Here, m, u, F, and t represent the mass,…

Q: Calculate the final velocity right after a 113 kg rugby player who is initially running at 7.45 m/s…

A: Given  Force ,,F = 18100 N  Time taken ,T = 5.50*10-2 sec   Mass of player, M = 113 kg  Initial…

Q: A rubber ball and a lump of putty have equal mass. They are thrown with equal speed against a wall.…

A: Rubber ball and lump of putty have equal mass .  They are thrown with equal speed . The ball bounces…

Q: If energy is never lost, why does the basketball you dropped eventually stop bouncing

A: Energy does not lost during bouncing.

Q: What is the momentum of a 1.5 N baseball which is dropped from the top of the 170-meter Washington…

A: Given data The magnitude of the force on the baseball is F = 1.5 N The height of the monument from…

Q: How much force acts on a tossed coin when it is halfway to its maximum height? How much force acts…

A: concept and Explanation -                                                  The net force acting on a…

Q: A 5000-kg freight car moving at 2 m/s collides with a 10,000-kg freight car at rest. They couple…

A: m1=Mass of first freight car=5000 kgu1=Initial velocity of first freight car=2 m/sm2=Mass of second…

Q: In a common physics demonstration, a bowling ball is suspended from the ceiling by a rope. The…

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Q: If tennis ball and a bowling ball collide in midair, does each undergo the same amount of momentum…

A: The expression foe momentum is

Q: Compare the momentum and the kinetic energy of an automobile weighing 900 kg and moving with a…

A: Mass of automobile ma = 900 kg  Velocity of automobile va =30 m/s  Mass of projectile mp = 30 kg…

Q: Bronco dives from a hovering helicopter and finds his momentum increasing. Does this violate the…

A: Law of conservation of momentum says that the momentum of a body is always conserved if there is no…

Q: how to apply hammer hitting the nail into momentum?

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Q: A pistol fires a 25-g bullet vertically into a stationary 1.5-kg block of wood that rests on a thin…

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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: If a player can toss a 0.200-kg ball with as much momentum as a 2.00-g object moving with a speed of…

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Q: Calculate the momentum of a 7 kg bowling ball traveling at 18 mph (about 8 m/s) just before it hits…

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Q: Why a ball bounces more high at heights?

A: As we know that the Gravitational force is increctly proportional to square of the distance from the…

Q: A 5-kg fish swimming 1 m/s swallows an absentminded 1-kg fish swimming toward it at a speed that…

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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: Your friend says that the law of momentum conservation is violated when a ball rolls down a hill and…

A: No, the law of momentum conservation is not violated when a ball rolls down a hill and gains…

Q: What are the two ways to increase impulse?

A: Impulse is the product of the force applied and the time for which the force is applied.

Q: Which requires more work to stop, a light truck or a heavy truck moving with the same momentum.

A: We know , work done (W) = change of kinetic energy. now K.E = 1/2mv^2 And momentum (P) =mv

Q: A 0.250 kg ball is fired from a spring gun into a 12 kg block of a ballistic pendulum. The block is…

A: Given: mass of ball m=0.250 kg mass of block M=12 kg center of gravity is raised h=6 cm To find the…

Q: A 70 Kg person walking at 1 m/sec bumps into a wall and stops in a distance of 2.5 cm in about 0.04…

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Q: Which has a greater amount of Momentum? A 10 kg cannonball flying at 50 m/s, or a 1000 kg car…

A: We know thatThe momentum of object  is given asP=m×vHerem=mass of objectv=velocity of…

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: A small block of mass Mis released from rest at the top of the curved frictionless ramp shown above.…

A: Solution: Part a          By conservation of energy we have:          Potential energy (top), Utop…

Q: A billiard ball traveling with a velocity of 5.0 m/s hits another ball of the same mass, which is at…

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Q: Which has the larger linear momentum: a 2,000-kg houseboat going 5 m/s or a 600-kg speedboat going…

A: Given data The mass of the houseboat is m1 = 2000 kg. The velocity of the houseboat is v1 = 5 m/s…

Q: Which is easier to get swinging, a baseball held at the end or one held closer to the massive end?

A: The situation in which the baseball bat can be swung with more ease depends on the centre of gravity…

Q: Allen throws a 0.15-kg basketball down onto the floor. The ball's velocity just before impact is 6.5…

A: Given, Mass of basketball = 0.15 kg  Initial velocity = 6.5 m/s downward Final velocity = 3.5 m/s…

Q: how does the KE change if a car's mass changes by a factor of 1/3 and changes it's speed by a factor…

A: Let the mass of a car = m Let the initial speed of car = v The initial kinetic energy is given by :k…

Q: An apple falls from a tree and strikes the ground without bouncing. What happens to its momentum? Is…

A: The system’s (Earth + apple) initial momentum is zero. When the apple falls towards the Earth, it…

Q: Which has a greater amount of Momentum? A 10 kg cannonball flying at 350 m/s, or a 1000 kg car…

A: Momentum of an object is defined as the product of its mass and velocity at which it is moving and…

Q: A plate with a mass of 0.375 kg is dropped and has a speed of 3 m/s when it suddenly hits the hard…

A: Given Mass of the plate is m=0.375 kg Initial speed of the plate is v0=3 m/s Final speed of the…

Q: What is the impulse on an 8-kg ball rolling at 2 m/s when it bumps into a pillow and stops?

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Q: When an object experiences an impulse, what property will change? Its time Its mass Its velocity

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Q: Nobody at the playground wants to play with the obnoxious boy, so he fashions a seesaw as shown so…

A: The picture shows the boy sitting on the board with the fulcrum being extremely close to him and…

Q: Calculate the momentum of a 6 kg bowling ball traveling at 16 mph about 7 m/s just before it hits…

A: Solution    Given data ;            M = 6 kg             V = 7 m/s

Q: From a flying aeroplane a body should be dropped in advance to hit a target, why?

A: From a flying aeroplane a body has to dropped in advance to hit the target because the trajectory of…

Q: A 40-kg girl, standing at rest on the ice, gives a 60-kg boy, who is also standing at rest on the…

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Q: Can an object have momentum without having energy? Defend your answer.

A: Momentum is a property of an object due to its mass and velocity. Momentum = mvSo, when an object…

Q: Which has the larger linear momentum: a 2,500-kg houseboat going 9 m/s or a 800-kg speedboat going…

A: The linear momentum is given by  p = m v  where, m is mass and v is velocity.

Q: At a bowling alley, Lily throws a 6 kg bowling ball at a velocity of 8 m/s. The bowling ball…

A: Solution: given thatbowling ball m1 = 6 kgvball, i = 8 m/spin mass m2 = 0.9 kgvpin, f =12 m/s

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.