A bullet has a mass of 0.0042kg. The muzzle velocity of the bullet coming out of the barrel of the rifle is 993m/s. What is the KE of the bullet as it exitsthe gun barrel?

Q: What is the Kinetic Energy of a 478 kg object that is moving with a speed of 15 m/s?

A: The mass of the object, m=478 kg   The velocity of the object, v=15 m/s

Q: A 1000 kg car moving south with 40m/s collides with a 1500 kg SUV moving west. After the collision,…

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Q: What is the momentum of an 8-kg bowling ball rolling at 2 m/s?

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Q: A 0.060-kg tennis ball, moving with a speed of 4.6 m/s, has a head-on collision with a 0.10-kg ball…

A: in all collision momentum remains conserved  momentum before collision = momentum after collision…

Q: If a projectile with a mass of 8.90 g is traveling at a speed of 1.11 km/s, determine the following.…

A: Given Data: The mass of a projectile is, m=8.90 g The speed of a projectile is, v=1.11 km/s   The…

Q: A snowball is thrown with a  speed of 45.0km/h,  giving it momentum with a magnitude of 2.10 Ns.…

A: Given value--- speed = 45 km / h. momentum = 2.10 Ns . We have to find--- mass of snowball ?

Q: What is the Kinetic Energy of a 1200 kg object that is moving with a speed of 24 m/s?

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Q: A 40 kg skater travelling at 4 m/s attempts to overtake a 60 kg skater traveling at 2 m/s in the…

A: Given data:  Mass of first skater (m1) = 40 kg Initial velocity of first skater (V1) = 4 m/s Mass of…

Q: A machine gun fires 8 bullets /s, each of mass 7 g the speed to each bullets is 12 cm/s then force…

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Q: What is the momentum of a 1,300 kg car traveling with a speed of 27m/s?

A: The mass of the car is m = 1300 kg. The speed of the car is v = 27 m/s.

Q: A 0.145- kg baseball with an initial speed of 23 m/s rebounds with a speed of 36 m/s after being…

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Q: An object moving with a speed of 35 m/s and has a kinetic energy of 1500 J, what is the mass of the…

A: Kinetic energy of an object depends on the velocity of that object provided the mass remains…

Q: What is the kinetic energy of a 12 kg object with a velocity of 10 m/s? *

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Q: What is the velocity of a 1750 kg car whose KE is 87x103 J O 12.37 m/S O 4.48 m/s O 9.97 m/s O 7.16…

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Q: The kinetic energy of a 68 -kg athlete running at a velocity of 4.5 m/s is about

A: Given  Mass of athlete = m = 68 kg  Velocity of athlete = v = 4.5 m/s  The kinetic energy is to be…

Q: The kinetic energy of a 68 -kg athlete running at a velocity of 4.7 m/s is about

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Q: A 5.0 kg shark swimming 1.0m/s swallows an 1.0 kg fish swimming toward it with a velocity 5.0 m/s.…

A: Using conservation of momentum m1u1+m2u2=m1+m2vv=m1u1+m2u2m1+m2

Q: The parking brake on a 1200kg automobile has broken, and the vehicle has reached a momentum of…

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Q: A bullet hits a wooden block on the underside and becomes embedded in it. The mass of the bullet is…

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Q: A 92-kg fullback is running at 3.1 m/s to the east and is stopped in 0.85 s by a head-on tackle by a…

A: Given : Mass of a fullback (m) = 92 kg Initial Velocity (vo) = 3.1 m/s Time (∆t) = 0.85 s Final…

Q: What is the kinetic energy of an object with a mass of 10kg and a velocity of 1.6 m/s?

A: As we know that the formula for kinetic energy(E) of an object with a mass of m and a velocity of v…

Q: What is the kinetic energy of a 27 kg dog that is running at a speed of 7.9 m/s (about 18 mi/h)?

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Q: A 25.0-gram bullet enters a 2.35-kg watermelon and embeds itself in the melon. The melon is…

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Q: A 25.0kg shell is fired from a 2100 kg cannon with a velocity of 500. m/s. what is the resulting…

A: GivenMass of the shell ms = 25.0 kgMass of the cannon mc = 2100 kgVelocity of the shell vs = 500 m/s

Q: A 5.0 kg rifle recoils with a speed of 8.0 m/s when a bullet with a mass of 64 g is fired. The…

A: Assume the coordinate axis in such a way that positive x-axis is towards right and negative x-axis…

Q: A 1.2kg ball is traveling to the right at 4.5m/s. It collides with a 2.1kg ball moving to the left…

A: Given data: The mass of ball moving right is m1=1.2 kg. The speed of ball moving right is u=4.5…

Q: What is the speed of a 0.145 kg baseball if its kinetic energy is 110J?

A: Given data: The mass of the baseball is m=0.145 kg. The kinetic energy of the baseball is KE=110 J.…

Q: What is the speed of a garbage truck that is 1.20×104kg and is initially moving at 25.0 m/s just…

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Q: How fast would 0.145 kg baseball have to go to have a kinetic energy of 120.5 J?

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Q: A tennis ball of mass 40 grams drops to the ground from a height of 1.5 meters. What is the momentum…

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Q: A 25 gram bullet is fired at 124 m/s into a 5.00 Kg block, the bullet penetrates the block and exits…

A: Momentum of system before and after collision remains constant. mbvbi=mbvbf+mblvblf…

Q: A 25kg cart moving at 4 m/s has how much momentum?

A: The momentum of a body is the product of its mass and velocity. p=mv…

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: What is the impulse required when a 20 kg box goes from rest to a velocity of 3 m/s in 4 seconds?

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Q: The energy needed to increase the speed of a certain car from 22 m/s to 44 m/s is 240 kJ. What is…

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Q: Two sumo wrestlers are in a match. At the start of the match, they both lunge at each other. They…

A: Given Data : The speed of the first wrestler is given as v1=2.3 ms The mass of the first wrestler is…

Q: On a very muddy American football field, a 95.0-kg linebacker tackles a 120.-kg halfback. Right…

A: The mass of the linebacker is m1=95 kg The initial velocity of the linebacker is v1=8.00 m/s(towards…

Q: A 500 kilogram car moving at 20 meters per second strikes a stone wall and is brought to a halt in…

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Q: A 40 kg skater travelling at 4 m/s and a 60 kg skater traveling at 2 m/s collide head on. If they…

A: By conservation of linear momentum:- M1U1 + M2U2 = (M1+M2).V Here, M1 = mass of 1 st skater = 40kg…

Q: What is the kinetic energy of a baseball whose mass is 0.15kg if it is thrown with a velocity of…

A: Given data:  Mass (m) = 0.15 kg Velocity (v) = 22 m/s Required: Kinetic energy (KE)

Q: How much impulse is needed to stop a 10-kg bowling ball moving at 6m/s?

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Q: What is the kinetic energy of a 0.43-kg soccer ball kicked  at  36.5 m/s?

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Q: A 60 gram bullet moving at 700 m/s embeds itself in a 4.5 kg wood block. What will be the block's…

A: Given data: Mass of the bullet, mb=60 g=60×10-3 kg=0.06 kg Velocity of the bullet, vb=700 m/s Mass…

Q: A 10,517-kg railroad car traveling at a speed of 25 m/s strikes an identical car at rest. If the…

A: Mass of each railroad car (m) = 10517 kg  Initial velocity of first railroad car = 25 m/s  Initial…

Q: If KE of an object is halved, what’s the percentage change in its linear momentum?

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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.