A 200 kg object moves with an initial velocity of 3m/s east is acted upon by a net force said to be 10N. Calculate the final velocity of the car after 3 seconds.

Q: the driver of a 1250 kg car travelling with a velocity of 27 m/s slams on his brakes when he…

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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: A skier weighing 90 kg starts from rest dowm a hill inclined at 17. He skis 100 m Bown the hill and…

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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: A basebait player exerts a force of 80N on a ball for a distance of 0.3m as he throws it. If the…

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Q: A crane drops a 1.7 kg steel ball onto a steel plate. The ball’s speeds just before impact and after…

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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 car moving at 11.5 m/s crashes into a tree and stops in 0.32 s. Calculate the magnitude of the…

A: The intial velocity of the car (u) = 11.5m/s The time taken by the car to stop is (t)= 0.32s

Q: how much impact force does a 1500 kg van, initially moving at 10 m/s that hits a tree and stopped…

A: Given data:  Mass (m) = 1500 kg Initial velocity (Vi) = 10 m/s Final velocity (Vf) = 0 m/s Time…

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 machine gun fires 10 bullets /s, each of mass 12 g the speed to each bullets is 16 cm/-1 then…

A: Given: A machine gun fires, 10 bullets per second mass of 1 bullet, mb = 12 gSpeed of each bullet, v…

Q: A 5.0-g bullet leaves the muzzle of a rifle with a speed of 340 m/s. What force (assumed constant)…

A: The equation of motion is,

Q: A 13 kg body moving at 33 m/s experiences a complete inelastic collision with a 2kg body moving at…

A: Mass of the first body M=13 kg and velocity v1=33 m/s and mass of second body m=2 kg and velocity…

Q: A crane drops a 1.8 kg steel ball onto a steel plate. The ball's speeds just before impact and after…

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Q: A 2.5-g bullet traveling at 350 m/s hits a tree and slows uniformly to a stop while penetrating a…

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Q: A crane drops a 1.8 kg steel ball onto a steel plate. The ball's speeds just before impact and after…

A: Mass of the crane(m)=1.8 kg Initial speed(vi)= -8.1 m/s Final speed (vf) =  3.7 m/s  Momentum…

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 crane drops a 1.9 kg steel ball onto a steel plate. The ball's speeds just before impact and after…

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Q: A running back with a mass of 70 kg and a speed of 8 m/s collides with, and is held by, a 95-kg…

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Q: A 50 kg object is shot from a cannon straight up with an initial velocity of 10m/s off a bridge that…

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Q: A 1500-kg car moving with a speed of 10 m/s collides with an electric post and is brought to rest in…

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Q: A 5.0-g bullet leaves the muzzle of a rifle with a speed of320 m/s. What force (assumed constant) is…

A: Given data:Mass of the bullet, m = 5 g = 5 x 10-3 kg.Initial velocity of the bullet, u = 0 m/sFinal…

Q: A 8.8-kg falcon catches a 2.3-kg dove from behind in midair. What is their velocity in unit of m/s…

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Q: The average force exerted

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

A: Given, mass of champagne bottel m = 1.7 Kg mass of cork mc = 7.3 g = 0.0073 Kg velocity of cork v =…

Q: A 90-kg halfback running north with a speed of 10 m/s is tackled by a 120-kg opponent running south…

A: Mass of first player (m) = 90 kg Mass of second player (M) = 120 kg Speed of first player (u) = 10…

Q: if 20N force acting on a stationary body changes its velocity to 10m/s in 5 seconds , then the mass…

A: Statement is true.

Q: Amotor car collides with a crash barrier when travelling at 100kmh 'and is brought to rest in 0.1s.…

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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: 4.0-g bullet leaves the muzzle of a rifle with a speed of 328 m/s. What force (assumed constant) is…

A: Given Data : The length of the barrel of the rifle is given as s = 0.76m. The final speed of the…

Q: A machine gun fires 4 bullets /s, each of mass 10 g the speed to each bullets is 6 cm/-1 then force…

A: Given data :                       Mass of each bullet    =   m                       Number of…

Q: 2. A 4 kg seagull flies at 15 m/s into the windshield of an airplane flying in the opposite…

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Q: A child sits in a wagon with a pile of0.34-kg rocks. If she can throw each rock with a speed of 9.5…

A: The expression for Linear momentum,

Q: A machine gun fires 9 bullets /s, each of mass 15 g the speed to each bullets is 18 cm/-1 then force…

A: We have  Number of bullets,n=9bullets/s mass of each bullet,m=15g speed of each bullet,v=18cm/s

Q: A machine gun fires 17 bullets /s, each of mass 20 g the speed to each bullets is 30 cm/s, then…

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Q: What is the average force on the ball of it is in contact with the club for 2.20ms?

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Q: A 100-kg tackler traveling at 2.5 m/s meets an 86-kg halfback traveling at 5.0 m/s head-on. After…

A: Given mass of tackler m1 = 100 kg mass of halfback m2 = 86 kg speed of tackler u1 = 2.5 m/s speed of…

Q: A running back with a mass of 80 kg and speed 8 m/s collides with, and is held by, a 120 kg…

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Q: A small block of mass 70g is given a kick on a frozen pond. The kick imparts to it an initial speed…

A: Given:- mass of block = 70 g = 0.07 kg initial velocity, u =8m/s the distance, s= 10m

Q: A 1,300kg car is traveling at a velocity of 30.0m/s when the driver slams on the brakes. If a…

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Q: A quarter hectogram bullet moving at 1,080 km/hr passes through a 3 cm thick sheet of foam plastic…

A: The initial speed of the bullet, u=1080 kmh×1000 m1 km×1 h3600 s=300 m/s   The final speed of the…

Q: A machine gun fires 6 bullets /s, each of mass 12 g the speed to each bullets is 16 cm/-1 then force…

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Q: A 4.0-g bullet leaves the muzzle of a rifle with a speed of 324 m/s. What force (assumed constant)…

A: Given:Initial speed of the bullet = 0Final speed of the bullet = 324 m/sDistance covered by the…

Q: A machine gun fires 9 bullets /s, each of mass 8 g the speed to each bullets is 12 cm/-1 then force…

A: Given data :                     Speed of each bullet      =     v                    Mass  of…

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.