A body of mass 16 kg initially at rest is subject to a force 4 N. What is the kinetic energy acquired by the body at the end of 10s? J 50 O J 2300 O None of these O J 3200 O J 20 O

Q: A particle of mass 10.0 kg starts from rest and moves along a straight line. The graph in fig 5…

A: Mass M =10.0 kg

Q: An airplane of mass 1.50 x 104 kg is moving at 60.0 m/s.The pilot then increases the engine’s thrust…

A: Mass of the airplane = 1.50 X 104 kgInitial Speed of the airplane = 60 m/sThrust force = 7.50 X 104…

Q: Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0 km/h; (b) an 80.-kg…

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Q: A 5.00 ✕ 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.900 m by a large…

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Q: Which has more kinetic energy: a 0.0019-kg bullet traveling at 409m/s or a 6.2 x 10^7 -kg ocean…

A:

Q: A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a…

A: Given data: The pushing force applied by the friend on a student is F = 46 N. The final kinetic…

Q: 6. A bullet moves with a velocity of 600 m/s and has gained a kinetic energy of 900 J. Compute its…

A:

Q: A 2.27-kg particle is subject to a net force that varies with position as shown in the figure. The…

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Q: 40. A 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the…

A: here we have to apply work energy theorem

Q: Bolum-7+A2B1C3UUXI As a 2.00-kg object move from (21 + 5)) m to(6l-2/) m, the constant resultant…

A: Given: Mass of object m = 2.0 kg S1 = 2i + 5j S2 = 6i -2j Force on the object F = 4i - 3j Initial…

Q: An engine uses 20000 N of force to power a car at an average speed of 5.0 m/s. What is the average…

A: P=Wt=Fdt=Fv

Q: isplacement Q6: An elevator has a mass of 1600 kg and is carrying 200 kg passengers. A constant…

A:

Q: Which of the following is true? O A. A body with zero velocity cannot have any potential energy O B.…

A: Kinetic energy is a property of a moving object or particle and depends not only on its motion but…

Q: A freight train consists of two 9.00 ✕ 105 kg engines and 50 cars with average masses of 3.50 ✕ 105…

A: (a)   From Newton’s second law of motion, the force exerted by each engine can be determined as…

Q: 3.70-kg particie is subject to a net force that varies with position as snown in the figure. The…

A: GivenMass of particle, m=3.70 kg

Q: A ball drops some distance and gains 30 J of kinetic energy. Do NOT ignore air resistance. How much…

A:

Q: Which has more kinetic energy: a 0.0012-kg bullet traveling at 412 m/s or a 5.3 x 107-kg ocean liner…

A: Given: The mass of the bullet is 0.0012 kg. The speed of the bullet is 412 m/s. The mass of the…

Q: Two cars are moving. The first car has thrice the mass of the second car but only 1/3 as the kinetic…

A: The energy possessed by a body due to its motion is known as kinetic energy. It is proportional to…

Q: An object starts from rest and moves a distance d due to the presence of a net force F_net. If the…

A:

Q: A 71 kg student traveling in a car with a constant velocity has a kinetic energy of 1.8 x 10^4 J.…

A: We know thatK.E=12mV2V=2(K.E)mHereV=velocity of objectK.E=kinetic energy of objectm=mass of object

Q: If the mass of the truck is halved while its velocity doubles, what happens to its kinetic energy?…

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Q: What is the gravitational potential energy of a 4.0 kg block that is raised 2.50 m from the ground?…

A:

Q: How much work must be done by frictional forces in slowing a 1000.0 kg car from 19.8 m/s to rest?…

A: Given data:  Mass (m) = 1000.0 kg Initial velocity (Vi) = 19.8 m/s Final velocity (Vf) = 0 m/s…

Q: Which has greater kinetic energy? A) a car traveling at 30 km/hr. B) a car of half the mass…

A: KE=1/2mv^2KEA=1/2(m)(30)^2=450(m) JHalf the mass and add the new velocityKEB=1/2(m/2)(60)^2=900(m) J…

Q: Q14) A 55-kg athlete climbs an 8 m long rope in 10 s. His average power output (in W) is A) 431 B)…

A: Mass of athelete = 55 kg  Vertical distance = 8 m  Time = 10 second

Q: Two cars are moving. The first car has thrice the mass of the second car but only 1/3 as the kinetic…

A: Assume mass of second car is m. So, mass of first car is 3m. Kinetic energy of first car is 1/3 of…

Q: A small object of mass ?=0.0250kg is moving in the positive x-axis with velocity ??=12.0m/s. What…

A: Given: Object mass m=0.0250 kg Initial velocity u=12 m/s Final velocity v=0 m/s Distance  x=15…

Q: If an object is moving at certain speed, it will have Kinetic Energy. If the object's speed is…

A: Given data:  Speed of the object = v New speed of the object (v1) = 3v Required: The new kinetic…

Q: 6.00 × 105 J of work are done on a 2210 kg car while it accelerates from 15.0 m/s to some final…

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Q: A force acting on a 2.00 kg object is given by F(x) = (2.00 N/m) x + (1.00 N/m³)x³. An object starts…

A: Given value--- mass = 2 kg . F = 2x + x3 . We have to find--- speed of object at x = 2 m .

Q: How much kinetic energy does a student of mass 60. kilograms running at 3.0 meters per second…

A:

Q: 5. What is the kinetic energy of a box of mass 0.75 [kg] sliding on a frictionless surface at a…

A: mass of box (m) = 0.75 kg constant speed (v) = 3 ms

Q: A 3.09-kg particle is subject to a net force that varies with position as shown in the figure. The…

A: Given: The mass of the particle is m=3.09 kg. According to work energy theorem: Kinetic…

Q: 4. A van travels at a speed of 40.0 km/h with a kinetic energy of 7 600 J. What is the van's mass?…

A: Given that speed of the Van and kinetic energy of the Van.Then We have to determine the mass of the…

Q: There are 2 cars. Assuming the first car has a mass of 1000 Kg, which has greater kinetic energy? a.…

A: given: mass of first car =1000 kg

Q: 10) A skier of mass 82.4 kg starts his run from rest. The skier drops 155 m vertically while skiing…

A: Given: Mass of skier, m=82.4 kg Initial height, H=155 m Final height, h=0 speed at bottom, v=10.0…

Q: An object of mass m = 2.9 kg is free to move on a horizontal surface without any friction. It is…

A: Given data: Mass of the object is m=2.9 kg. Force on the object is F→=3 Ni^+4 Nj^. Distance moved by…

Q: During a serve, a tennis racket exerts an average force of 250 N on a 80-g tennis ball, initially at…

A: Given data:  Force (F) = 250 N Mass (m) = 0.080 g Initial velocity (Vi) = 0 m/s Time (t) = 0.005 s…

Q: A force acting on a 2.00 kg object is given by F(x) = (2.00 N/m)x+ (1.00 N/m³)x³. An object starts…

A: The mass of the object is m=2.00 kg The force acting on the mass is Fx=2x+1x3

Q: Which has more kinetic energy: a 0.0012-kg bullet traveling at 395 m/s or a 6.0  107-kg ocean liner…

A: Ebullet=12mv2=0.50.0012 kg395 m/s2=93.6 J

Q: How much energy is needed to slide a 10 kg object of a horizontal surface of coefficient of friction…

A: mass = 10 kg distance moved = 10 m coefficient of friction = 0.25

Q: A 1000-kg car is traveling at 20 m/s along a horizontal road when the brakes are applied. The car…

A:

Q: An object starts from rest and moves a distance d due to the presence of a net force F_net. If the…

A: Option- a is correct answer. Since change in kinetic energy produced work done . So E=F×d Where E =…

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.