5. Compute the kinetic energy of a1200 kg. automobile traveling at 20 km/hr. 1
Q: A student in a lab exerts a force of 25 N on an angle to pull a block by a distance of 48 cm. If a…
A: Given data :- Force F = 25 N Displacement d = 48 cm = 0.48 m Work done W = 11 J
Q: A car engine supplies a power of 300,000 W while traveling at constant speed of 28 m/s. Find the…
A: Given in question - Power(P) = 300,000 W Speed(V) = 28 m/s To…
Q: 7. A 90.0 kg man pushes on a 5.0 x 106 ton wall for 350 s but it does not move. How much work does…
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Q: A 45 kg object is lifted to a height of 18 m. The Potential energy of the object is_ О а.7.938 k] O…
A: Given : m = 45 kg h = 18 m
Q: 4. How work done is related to gravitational potential and kinetic energies? Also discuss the total…
A: 4. How work done is related to gravitational potential and kinetic energies? Let us consider we are…
Q: A boy pushes his little brother in a box with a force of 500 N for 324 m. How much work is this if…
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Q: 4. How much work is required for a 1200-kg automobile to increase its speed from 30.0 m/s to 40.0…
A: Energy is capacity to do work. There is one theorem which tells that work and energy are…
Q: If a 50 kg object initially at rest is displaced 25 m by a constant net force of 600 N in the…
A: Given: Mass of the object, m = 50 kg Displacement, S = 25 m Force, F = 600 N Initial velocity of…
Q: 10. An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the…
A: Given: Potential energy = 362600 J Height = 20 m
Q: 1903 kg car travels at a speed of 11.7 m/s. what is its kinetic energy? answer in J units
A: Given Data: The mass of the car is, m = 1903 kg. The velocity of the car is, v = 11.7 m/s. The…
Q: 11. You take a ride in a wagon. The wagon’s mass (including you) is 200 kg. A horse pulls it with a…
A: Total mass, m=200 kg Pulling force by the horse, F= 78.9 N Speed of the mass, v=3.7 m/s Displacement…
Q: A 4 kg ball falls from height of 23 m. What willbe potential energy of the ball after 0.8 second?…
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Q: If both mass and velocity of a ball are doubled, the kinetic energy is increased by a factor of: a.…
A:
Q: what is the kinetic energy of a bullet of mass 5.00 g traveling at a speed of 305 m/s. what is the…
A:
Q: 2. A 10-kg mass is dragged on a horizontal frictionless surface by a force F(x) = 2x + 1 (N) that…
A:
Q: Q40. Calculate the work done in moving a body of mass 50 kg through a height of 5 m. (g = 10mis) 250…
A:
Q: 8. What is the kinetic energy of a 1200 kg car travelling 90 km/h?
A: Given: The mass of the car is 1200 kg. The speed of the car is 90 km/h.
Q: 8. Describe an object that has a lot of kinetic energy, but not much speed.
A: The kinetic energy of an object is given as, K=12mv2 Here, m denotes the mass and v denotes the…
Q: 9. A 16 kg object is dropped from a height of 25 m and strikes the ground with a speed of 18 m/s.…
A:
Q: Suppose an elephant has a mass of 2750 kg. 1) How fast, in meters per second, does the elephant…
A: Given: The mass of elephant is m=2750 kg. The mass of the sprinter is M=69.5 kg. The velocity of…
Q: 1. A farmer pulls a cart with a force of 40 N for 15 m. If the farmer pulls the rope attached to the…
A: Given data: Force (F) = 40 N Distance (d) = 15 m Angle (θ) = 30° Required: The work done (W)
Q: The kinetic energy of a car is 1.0 x 10^5 J. Calculate its kinetic energy if the car’s speed is a.…
A:
Q: 10. The kinetic energy of a car is 8 x 10° J as it travels along a horizontal road. How much power…
A: Given, The kinetic energy of car=8x106j The car has to stop in 10 s Let required power is P
Q: X 18. Mr. Kustusch exerts a force upon a 3.9-kg pile of snow to both lift it 0/2 and set it into…
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Q: How long will it take a 844-kg car with a useful power output of 48.5 hp (1 hp equals 746 W) to…
A:
Q: 2. A 1200 kg car is moving at 30 m/s and speeds up to 35 m/s. Find the work done on the car.
A: According to the work energy theorem, the work done is equal to the change in Kinetic energy,…
Q: A farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20 m along…
A:
Q: Calculate the potential energy of a 4.5 kg bowling ball that is on the ground. Assume that g = 9.8…
A: Mass, m = 4.5 kg Ball is on the ground means height is zero. Acceleration due to gravity, g = 9.8…
Q: You are working at a factory. You put a carton (box) with a mass of 2.5 kg on a 1.5-m frictionless…
A:
Q: A car (m=1000 kg) is initially moving at a speed of 20 m/s (~45 mph) when the driver hits the brakes…
A: Work done is equal to change in kinetic energy W=∆EK=12mvf2-vi2=121000 kg0-20 ms2=-200000 J=-200 kJ
Q: A 60-kg woman runs up a flight of stairs having a rise of 4.0 m in a time of 4.2 s. What average…
A: Given data: Mass (m) = 60 kg Height (h) = 4.0 m Time (t) = 4.2 s Required: The average power (P)
Q: An eighteen-wheeler truck of mass 42.0x10 kg moves a speed of 32.0 m/s on a highway. Determine (a)…
A:
Q: The kinetic energy of a 3.0 kg object moving at a speed of 9.3 m/s would be: а. 130 J b. 260 J с. 28…
A: Given that,Mass, m=3.0 kgVelocity, v=9.3 m/s
Q: A car is moving with a kinetic energy of 80 J and is slowed down and stopped in a distance of 0.05…
A: Given data The kinetic energy of the car is KEi = 80 J. The final velocity of the car is zero as it…
Q: 1. The shot is 1.2 m above the ground at 10 m/s when a shot-putter fires a 5 kg shot. It reaches 5 m…
A: Initial kinetic energy = (1/2)×mv2 Ki = (1/2)×5×102 = 250 J Initial potential energy = mgh Ui =…
Q: 7. Determine the total work required to accelerate a vehicle of mass 1500 kg from 10 m/s to 25 m/s.
A: Given, Mass , m = 1500 kg Initial velocity = 10m/s Final velocity = 25m/s Work done = change in…
Q: 4. A mass of 5.75 kg is lifted vertically upward from rest a distance of 1.80 m by a constant…
A: Given, Mass, m=5.75kg Distance, s=1.80m Force, F=83.5N Work Done by the Force, W= force * distance…
Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=7 m/s at a starting point.…
A:
Q: 1. How far must a 12N force pull a 150g toy car if 600 J of energy are transferred? distance m 2. An…
A: 1)Force applied=12N mass of the toy car=150gm=0.15 Kg Energy transferred to the toy car=600J…
Q: A car travelling at a speed of 60 km/h has a kinetic energy of 200 kJ. If the speed of the car is…
A:
Q: 5.A hiker climbs from an elevation of 1,500 ft to the top of a mountain whose height is 3,800 ft…
A: Given Mass (m ) = 95 kg h1 = 1500 ft = 1500 × 0.305 m h2 = 3,800 ft = 3,800 ×…
Q: 4. A weightlifter raises a 150-kg barbell from the floor to a height of 2.2 m in 0.80 s. What is his…
A: Mass = 150 kg Height = 2.2 m Time = 0.80 sec
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