"A toy rocket, weighing 10 N, blasts straight up from ground level with a kinetic energy of 40 J. At the exact top of its trajectory, its total mechanical energy is 140 J. To what vertical height does it rise?" O 1.0 m O 10 m 14 m O 24 m

Q: You want to drop a ball of weight 10.0 N into free fall from rest from a certain height above the…

A: The weight of the ball,

Q: A car of mass 1,000 kg moves with a speed of 5.00 m/s. If the car triples its speed to 15.0 m/s then…

A:

Q: .An advertisement claims that a certain 1300 kg car can accelerate from rest to a speed of 25 m/s in…

A: Please see the answer below

Q: A 65-kg woman runs up a flight of stairs in 10.0 s. Her net upward displacement is 3.0 m.…

A:

Q: 10-kg dog is running with a speed of 5.0 m/s. What is the minimum work required to stop the dog in…

A: Given: The mass of the dog is 10 kg. The initial speed of the dog is 5 m/s. The final speed of the…

Q: An accelerating object of mass m=2 kg is fired with an initial speed v=8 m/s at a starting point. If…

A: Given data: Mass m =2 kg Velocity v=8 m/s2. Final Kinetic energy =268 J

Q: What is the work required to raise a 200 kg barbell to a height of 1.25 m? O 2 500 J O 1755 J O 3…

A: Write the expression for the work done to raise a barbell. Here, m represents the mass, g…

Q: What average power is needed to accelerate a 1 kg soccer ball from rest to 36 km/hr in 0.1 seconds?…

A: Given data: Mass (m) = 1 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 36 km/hr Time (t) =…

Q: A 2.0-kg potato has been launched out of a potato cannon at 9.0 m/s. What is the kinetic energy? If…

A: mass, m = 2 kg, velocity, v = 9 m/s , height, h = 4 m

Q: A cheetah can accelerate from rest to 6.4 m/s (about 16 m/h) in 1.2 seconds. How much average power…

A:

Q: a toy car (0.50kg) runs on a frictionless trackand has an initial kinetic energy of KE =1.6. over…

A:

Q: A bag of wheat weight 100 kg. To what height should it be raised so that potential energy is 120 J?…

A: Given: The mass of the object is 100 kg. The potential energy of the object is 120 J. The…

Q: A 700-kg car accelerates uniformly from 3 m/s to 10 m/s. The work done on the car (in kJ) is: Оа.…

A:

Q: A physics student shoves a 5-kg block from the bottom of a frictionless 30.0° inclined plane. The…

A: Given: Mass of block, m=5 kg Angle made with horizontal, θ=30° Work, W=4 J Diagram:   Formula:…

Q: What could be the kinetic energy of a 0.8kg encyclopedia sitting on top of a table? a. 0 J b. 1 J…

A:

Q: A car of wheat weight 120 kg . To what height should it be raised so that potential energy is 2320…

A: Given data The weight of the wheat car is given as m = 120 kg. The potential energy is given as PE…

Q: A car of wheat weight 330 kg . To what height should it be raised so that potential energy is 8860 J…

A: Given value--- mass = 330 kg. potential energy = 8860 J. g = 9.8 m/s2.  We have to find---…

Q: A 5.0-kg cart is moving horizontally at 4.0 m/s. In order to change its speed to 6.0 m/s, the net…

A: Given: Mass of cart m=5.0 kg Initial speed u=4.0 m/s Final speed v=6.0 m/s To find net work done in…

Q: A car of weight 100 kg. To what height should it be raised so that potential energy is 1230 J? Take…

A: Given  Mass (m) = 100 kg  Potential energy (PE) = 1230 J    Gravitational Potential energy is given…

Q: A block of mass 2.0 kg is moving to the right and changes its speed from 3.0 m/s to 1.0 m/s. Match…

A: Given data:  Mass (m) = 2.0 kg Initial velocity (Vi) = 3.0 m/s Final velocity (Vf) = 1.0 m/s…

Q: A boy is carrying a bucket of water of mass 3810 grams. If he does 16.5 J of work, to what height…

A: Given data:  Mass (m) = 3810 g = 3.810 kg Work done (W) = 16.5 J Required: Height (h)

Q: 50 kg object was raised to a height and gained a potential energy of 1212 J. What was the height…

A:

Q: A bird of mass m = 2kg flies at a height h = 10 m from the ground with a constant horizontal speed v…

A: The mass of the bird, m=2 kg   The height, h=10 m   The horizontal speed, v=10 m/s

Q: A 1 kg mass is projected from the edge of a 20 m tall building with an initial speed of 10 m's. The…

A:

Q: A bag of wheat weight 280 kg.To what height should it be raised so that potential energy is 8900 J?…

A: Given data :    Mass of the bag  =  m   Potential energy  =  P•E  Acceleration due to gravity  =…

Q: A duck is flying across a river at a speed of 2.0ms. It has a mass of 3.0kg. What is the kinetic…

A: Given: The mass of the duck is 3 kg. The speed of the duck is 2 m/s.

Q: While a 33 kg girl jumps on a trampoline, her speed is measured at different points and it is…

A:

Q: A belicopter with mass m 3250 kg is cruising at a speed of 56.9 m/s at an altitude of 185 m. What is…

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Q: A basketball player throws a basketball m = 1 kg straight up with an initial speed of v0 = 9.5 m/s.…

A: Given,

Q: A proton (mass m = 1.67 × 10-27 kg) is being accelerated along a straight line at 2.70 × 1011 m/s2…

A: (a)consider the kinematic equation.Vf2=v02 +2as                (i)             where,     vf=final…

Q: An object is thrown vertically upward with an initial kinetic energy of 4000 J from the level where…

A: Given information: The initial Kinetic energy (KE) = 4000 J The initial Potential energy (PE) = 6000…

Q: A cheetah can accelerate from rest to 7.4 m/s (about 17 m/h) in 1.1 seconds. How much average power…

A: The correct choice of answer is option (a) i.e. 1300 W

Q: A rubber ball with mass 0.3 kg is dropped vertically from a height of 1.5 m above a floor. The ball…

A: The total energy of the system can be determined as, Here, m, g and h represent the ball’s mass,…

Q: An airplane of mass 4500 kg is cruising at a speed of 49.0 m/s at an altitude of 175 m. What is its…

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Q: An apple falls from a tree and drops straight to the ground. Its initial height was 2.3 m , and its…

A:

Q: What is the kinetic energy of a 12 000 kg truck moving at a speed of 25 m/s? Select one: a. 3.8 x…

A: We know Kinetic energy is given by : K.E.=12mv2 And Given : m=12000 Kg v =25 m/s

Q: A bullet of weight 160 kg To what height should it be raised so that potential energy is 2250 J?…

A: The potential energy of an object of mass M when it is raised to a height h, U = Mgh

Q: A bag of wheat weighs 200 kg. To what height should it be raised so that potential energy is 9800 J?…

A: Given data:  Mass (m) = 200 kg Potential energy (U) = 9800 J Acceleration due to gravity (g) = 9.8…

Q: A 0.300-kg football is thrown through the air. At a height of 1.71 m above the surface of Earth, it…

A:

Q: A 2.00 kg particle has a speed of 4.00 m/s at point A and kinetic energy of 9.50 J at point B. What…

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Q: Consider a compact car that is being driven at 88 km/h. The acceleration of gravity is 9.8 m/s. From…

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Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30…

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Q: A 5.0 kg object is moving at 2.29 m/s? By what factor does its kinetic energy change if its speed…

A:

Q: A 172 g box slides up a 17.3* ramp at a speed of 3.55 m/s. Using conservation of energy and assuming…

A: 12mv2=mgh=mglsinθl=v22gsinθ

Q: A 0.1 kg ball has a speed of 9 m/s at point P and a kinetic energy of 6.05 J at point Q. Its kinetic…

A:

Q: The Burj Khalifa in Dubai is the world's tallest building. The structure is 828 m828 m (2716.5 ft)…

A:

Q: A system in which only one particle can move has the potential energy shown in . Suppose U1 = 16 J.5…

A:

Q: What is the power output for a 60.0 kg person who runs up a 3.00 m high flight of stairs in 3.50 s,…

A:

Q: A car of weight 120 kg. To what height should it be raised so that potential energy is 2320 J? Take…

A: Given data :- weight of car m = 120 kg potential energy U = 2320 J g = 9.8 m/s2