A body has a mass of 18 kg falls freely from rest. After falling 235 m, what will its velocity be just before impact. Neglect air friction

### Want to see the full answer?

Check out a sample Q&A here*star_border*

## Related Mechanical Engineering Q&A

Find answers to questions asked by students like you.

Q: A man manages to ride a bicycle (total mass 95 kg), from rest, up a hill 230 m high against an air…

A: According to the work energy theorem, in the given problem the work done by the man should be equal…

Q: A lila m2=1 Kg and initial velocity u2= 10m/s moving to the left as shown in the figure below. Find…

A: Draw the schematic diagram for both the mass after the collision. Assume after the collision both…

Q: A 1 Kg mass starts with an initial velocity of 100m/s at the top of an inclined plane. By how much…

A: Determine velocity of block at bottom ( when it just touch spring) by using energy conservation

Q: How can you define impulsive force in terms of momentum.

A: Click to see the answer

Q: If a 20 hp fishing boat motor can pull a 1150 kg boat with passengers of total mass 120 kg at a…

A: Given Data→P = 10 HP =10×746 watt =7460 wattm =1150 kgmass of passangers (M) =120 kgv = 13mswe need…

Q: A cargo truck weighing 2,700 kg accelerates from 3.5 m / s to 6.2 m / s in 12.0 seconds applying a…

A: Click to see the answer

Q: A rocket lifts off from Earth initially at a mass of 50,000 kg. If it I fuel during 40 seconds, it…

A: Given:initial mass of the rocket, mi=50000 kgfuel burns, mf=40000 kgrate of fuel burns,…

Q: A golf player hits a 0.045 kg golf ball that is initially at rest, changing its momentum by 4.2…

A: Given Mass, m = 0.045 kg Initial velocity, u = 0 Momentum, L = 4.2 kg-m/s

Q: 3. A ball is thrown vertically upward from the ground and a student gazing out the window sees it…

A: according to the given details in the question.

*question_answer*

Q: If a resultant force is applied to one mass on a frictionless surface, it accelerates at 6 m/s. When…

A: Click to see the answer

*question_answer*

Q: A wind turbine has a blade length of 20 m. In a given day, average speed of wind for 4 hours is 7…

A: Click to see the answer

*question_answer*

Q: A tennis player hits a ball and gives it a change in momentum of 3.3 kg-m/s over 0.005 s. What is…

A: Given :- change in momentum ∆p = 3.3 kg -m/s time t = 0.005 s We should…

*question_answer*

Q: A rocket lifts off from Earth initially at a mass of 50,000 kg. fuel during 40 seconds, it increases…

A: Given:initial mass of the rocket, mi=50000 kgfuel burns, mf=40000 kgrate of fuel burns,…

*question_answer*

Q: Consider two scenarios. A ball of weight 10 N rolls on the floor and a block of weight 10 N slides…

A: Assumptions: It is assumed that both the objects (ball and block) are placed on different…

*question_answer*

Q: Consider two scenarios. A ball of weight 10 N rolls on the floor and a block of weight10 N slides on…

A: Given Data⇒⇒ Two Scenarios (1) A ball with a weight of 10 N rolls on the floor (2) A ball with a…

*question_answer*

Q: A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m…

A: According to the question, chairs are 20 m apart and the total length is 1 km. Calculate the number…

*question_answer*

Q: A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m…

A: Click to see the answer

*question_answer*

Q: A 1000 kg car is traveling at 90 km / h on a flat road. The brakes are applied long enough to reduce…

A: (a) Calculate the initial kinetic energy of the car. K.E = 0.5mvi2 = 0.5*1000*[90*(5/18)]2…

*question_answer*

Q: the ground with velocity 1= 22 m/s and V2 = 15 m/s. Find mass ml and mass m2 in kg

A: Givenv1=22m/sv2=15m/sm3=1.30 kgm1=?m2=?

*question_answer*

Q: The resistance to motion is given by R, = (0.011 · 0.000 06 5 Mg + 0.028 AV² where M is the mass in…

A: Click to see the answer

*question_answer*

Q: A child puts a 0.005 kg spitball in a straw and blows into the end so that the net internal pressure…

A: Data given- m = 0.005 kg P = 4000 N/m2 A = 0.000075 m2 t = 0.2 sec

*question_answer*

Q: A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance…

A: Click to see the answer

*question_answer*

Q: A cylinder rolls freely down at 2°. What will be its speed after rolling 10 m from rest down the…

A: Click to see the answer

*question_answer*

Q: Express the conservation of momentum principle. What can you say about the momentum of a body if the…

A: The conservation of momentum states that, within some problem domain, the amount of momentum remains…

*question_answer*

Q: A 1,000-kg rocket carrying 25 kg of fuel and oxygen rises at a velocity of 305 m/s. If all the mass…

A: Click to see the answer

*question_answer*

Q: A body of mass 15 kg moving with velocity of 2 m/s is acted upon by a force of 75 N for two seconds.…

A: Given, Mass = m = 15 kg Initial velocity = v1 = 2 m/s Force = F = 75 N Time of action = t = 2 s…

*question_answer*

Q: A hydroelectric generator converts kinetic energy of water into electrical energy. Each second 1755…

A: Volume of water, V=1755 m3 Water flow per second, Q=1755 m3/s Water head, H=107 m Generator…

*question_answer*

Q: A wind turbine has a blade length of 30 m. In a given day, average speed of wind for 5 hours is 9…

A: Wind Turbine is a device that converts mechanical energy into electrical energy. The kinetic energy…

*question_answer*

Q: Determine the velocity required for take off for an aircraft with the following characteristics.…

A: Given that, Mass of aircraft, M=7150 kg,Wingspan=15 m,Wing shape=Rectangular,Wing chord length=1.2…

*question_answer*

Q: A 20,000 kg train car traveling at 8 m/s crashes into a 30,000 kg train car at rest and the two cars…

A: Let us denote 20,000 kg train by subscript 1 and 30,000 kg train by subscript 2. Given, m1 = 20,000…

*question_answer*

Q: If velocity of entering air and jel are 150 m/ s and 350 m/s, the thrust power will be equal to…

A: Click to see the answer

*question_answer*

Q: A 498-gram ball is traveling horizontally at 11.1 m/s to the left when it is suddenly struck…

A: Mb=498g=498×10-3kgVb=11.1m/s (left)V' =-8.8m/s (right)average force, Favg=1300Ntime, t =?using…

*question_answer*

Q: Methane, with a density of 0.52 kg/m³, enters a burner with a velocity of 30 m/s through a…

A: Click to see the answer

*question_answer*

Q: On flat ground, a 70 kg person requiresabout 300 W of metabolic power to walk at a steady pace of5.0…

A: Given details: m=70 kgP=300 Wvbiking=15 km/hvwalking=5 km/h Formula used: K.E.=12mv2

*question_answer*

Q: A 0.8-lbm object traveling at 200 ft/sec enters a viscous liquid and is essentially brought to rest…

A: Given: Mass of the object is 0.8 lbm. Initial speed of the object is 200 ft/sec. Final speed of the…

*question_answer*

Q: A 0.70-kg block initially at rest on a frictionless horizontal surface is acted upon by a force of…

A: Click to see the answer

*question_answer*

Q: Two sites are being considered for wind power generation. In the first site, the wind blows steadily…

A: Assumptions: 1. The wind is blowing steadily at specified velocity during specified times. 2. The…

*question_answer*

Q: A rocket lifts off from Earth initially at a mass of 50,000 kg. If it burns 40,000 kg of fuel during…

A: Given:initial mass of the rocket, mi=50000 kgfuel burns, mf=40000 kgrate of fuel burns,…

*question_answer*

Q: Q6) (a) Two sites are being considered for wind power generation. In the first site, the wind blows…

A: Click to see the answer

*question_answer*

Q: (d) Water of density 998 kg/m is moving with a speed of 6 m/s through pipe with cross-sectional area…

A: Every real fluid existing in nature must satisfy the equation of continuity. The equation says that…

*question_answer*

Q: How much energy (in MJ) does it take to lift a person and their luggage (800 lb total weight) to a…

A: Given : M = 800 lb = 362.874 kg H = 70000 feet = 21336 m V = 200 mph = 89.408 m/s To find : Amount…

*question_answer*

Q: A 1981 Toyota Tercel of mass 1400 kg turns from Chaplin Road to I-79, thereby accelerating from 30…

A: Given initial speed , V1=30 MPH V1=13.4112 M/S Since 1 MPH=0.447 m/s…

*question_answer*

Q: 2. An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a friction less horizontal…

A: Given, m = 2 kg v = 4 m/s Friction force = 0 N (As block is sliding on frictionless surface)…

*question_answer*

Q: A ball is thrown with a velocity of 12 m/s at an angle of 60° with the horizontal. How high the ball…

A: Given, Initial velocity = V0 = 12 m/s Angle of projection = θ = 60o Maximum height attained by…

*question_answer*

Q: A 1.6 oz golf ball dropped from a height of 16 ft rebounds to a height of 9 ft. Determine the value…

A: Click to see the answer

*question_answer*

Q: A small plane flying at 180 kph at an altitude of 240m, is to drop an inflatable raft to flood…

A: Given Data Horizontal Speed of plane is :u=180 kph=50 m/s Height is :h=240 m Initial vertical speed…

*question_answer*

Q: Consider the fire extinguisher Assuming a steady exhaust from a 1”-diameter nozzle in the fire…

A: The mass flow rate of the fluid is the amount of matter that passes through a certain cross-section…

*question_answer*

Q: Calculate the total potential energy, in kJ, of an object with a mass of 195.56 lbm when it is 11.84…

A: Click to see the answer

*question_answer*

Q: A 82kg skydiver jumps from a height of 95 meters and strikes the ground with a speed of 6 meter per…

A: Given, m = 82kg H = 95m v = 6m/s

*question_answer*

Q: Water vapor saturated at 150 degrees Celsius (h = 2745.9 kj / kg) flows at an altitude of z = 10…

A: Given data saturation temp of water vapor (Ts) = 150oC h = 2745.9 kJ/kg altitude (z) = 10 m…

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_back_ios*

- SEE MORE QUESTIONS

*arrow_forward_ios*