11. A 2.0-kg piece of gelatin is made to slide down a ramp from point a to point b, as shown. The total distance between points a and b is 2.0 m while the vertical distance between the same points is 0.80 m. If the ramp is frictionless, (a) what force does work on it and (b) how much work does this force do? a b. 12. One of the fastest pitches in baseball is recorded at 45 m/s. If this pitch were directed upwards instead of horizontally, to what height would it have travelled? Ignore the effects of air resistance. Werk dore by Non-Conservative Forces

Q: 1. How much work must a spring with a constant of 8.3 x 104 N/m do to stop a 1,520-kg vehicle…

A:

Q: A force acting on an object moving along the x axis is given by Fx = (14x - 3.0x3) N where x is in…

A: Given: The force on the object is Fx=14x-3.0x3. The object moves from -1.0 m to +2.0 m.

Q: You and your bicycle have combined mass of 80 kg. When you reach the base of the bridge, you are…

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Q: A 1.3 kgkg book is lying on a 0.80 mm -high table. You pick it up and place it on a bookshelf 2.2 mm…

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Q: A 23.5 kg sled is pulled 14.3 m along a flat section of snow by a force of 70.8 N [23.0° above…

A:

Q: A horizontal rope with 15 N tension drags a 25 kg box 2.0 m to the left across a horizontal surface.…

A:

Q: When released, a 100-g block slides down the path shown below, reaching the bottom with a speed of…

A:

Q: An archer pulls his bow string back 0.40 m by exerting a force that increases uniformly from zero…

A: displacement of string pulled by archer, s = 0 40 m Initial force applied, Fi = 0  Final force, Ff =…

Q: a = 1.2 ms? A Smart Car accelerates from rest as shown. 12. If the constant acceleration occurs over…

A: m=Mass of smart car=860 kga=Acceleraiton of car=1.2 m/s2s=Displacement of car=30 m

Q: Ellie is pushing a rolling bag at 40o with a force of 350 N and able to displace her bag by 2800 mm,…

A: The angle is Φ = 40o  Force is F = 350 N  Displacement is S = 2800 mm = 2.8 m

Q: Fluffy has just caught a mouse, and decides that the only decent thing to do is to bring it to the…

A: The rate of work is known as power. Calculate the speed of Fluff's. Power = F*v 6.30 = 3.30*v v =…

Q: A 1.5 kg object slides across a horizontal surface with an initial speed of 6.84 m/s. If the object…

A:

Q: how much work are you doing?

A:

Q: when released from rest, a150 g block slides dewn the path shown below, reaching the bottom with a…

A: Given data *The mass of the block is m = 150 g = 150 × 10-3 kg *The final speed of the block is v =…

Q: When released from rest, a 170 g block slides down the path shown below, reaching the bottom with a…

A:

Q: O (S): A 50-N force is the only force on a 2-kg object that starts from rest. When the force has…

A: Given: Force = 50 N Mass of the object =2 kg Distance =2 m v0=0 General equation of motion: v2= v02…

Q: 6. If you push on a 300 kg rock with a force of 1,000 N for 10 s, and it doesn't move, how much work…

A: 6- Given: Mass of rock, m=300 kg Applied force, F=1000 N Force applied for time t=10 s To determine…

Q: A roller coaster cart of mass m = 241 kg starts stationary at point A, where h1 = 39.4 m and a while…

A: The potential energy of the car at A relative to the ground is given by, UA=mgh1

Q: A spring and block are in the arrangement of the figure. When the block is pulled out to x = +5.0…

A: Write the given values of the problem-  the block is pulled out then-x=5 cm force of the…

Q: Starting from rest, a 60.0 kg student takes 4.0 s to run up a 3.0 m high flight of stairs. On…

A:

Q: an 8 kg block is released from rest with v1= 0m/s. The block moves down a distance of 1.6 meters on…

A: mass = 8 kg initial speed = 0 m/s distance along the incline = 1.6 m angle of incline = 40 degree…

Q: A 2.4 kg object slides across a horizontal surface with an initial speed of 7.6 m/s. If the object…

A: SOlution: Given that m = 2.4 kg v = 7.6 m/s

Q: How much work (in J) is required to move a box that weighs 13 kg upward by 65 cm? Use the fact that…

A:

Q: Starting from rest, an 1800 kg car rolls down a hill 22 m high. It reaches the bottom going 15 m/s.…

A: Mass of car (m)= 1800 kg Height of hill = 22 m Velocity at bottom of the hill = 15 m/s

Q: 3. A factory worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant…

A: Given data: The mass of crate is m=30 kg. The distance traveled is d=4.5 m. The applied force is…

Q: You go for a walk one afternoon down a level street to a park where there is a hill.  If the hill is…

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Q: Erol carries an 8.0 -kg suitcase as she walks 45 m along a horizontal walkway to her room at a…

A:

Q: (10%) Problem 1: A boy is pulling his sister in a wagon, as shown in the figure. He exerts a force…

A: Given : F = 49.5 N  θ = 30° d = 31.5 m

Q: A body of mass 20 kg is lifted up through a height of 4 m. How much work is done? (take g = 9.81…

A: Given data,                    Mass, m = 20 kg                   height lifted, h = 4 m         Only…

Q: A 5.00kg block starts from rest at the top of a 30.0° incline and slides 2.0m down the incline in…

A: Given: The mass of the block is 5.00 kg. The angle of inclination is 30.0 degrees. The distance…

Q: A firefighter climbs a 10 m long ladder that is inclined at 40° to the horizontal.  If she has a…

A: Given Data: The length of the ladder is: L=10 m The angle of the ladder with the horizontal plane…

Q: A block is acted on by a force that varies as (1.9×104N/m)x for 0≤x≤0.21m, and then remains constant…

A: SOlution: Given that Force varies as (1.9×104N/m)x for 0≤x≤0.21m,  Force remains constant at 3990 N…

Q: A one-dimensional force has the form F(x) = A x2-Bx where A =1.8 N/m2 and B = 0.65 N/m. How much…

A: We have a one-dimensional force which is given by  F(x)=Ax2-Bx  where constants A=1.8 N/m2 and…

Q: A 4.65 kg block is launched horizontally by a spring with constant k = 2,584.6 N/m. It slides across…

A:

Q: A man pulls a 4.6-kg sled 50 meters along an angled hill with a force of 36 N, which elevates the…

A:

Q: Felip carries a 250-N bag up three flights of stairs, a height of 12.5 m and then pushes it with a…

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Q: Given: A tennis ball of mass m = 0.063 kg is thrown straight up with an initial speed v0 = 7 m/s.…

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Q: A 2.2 kg object slides across a horizontal surface with an initial speed of 6.34 m/s. If the object…

A: Answer:  WFμ=-44.21 Joules Explaination: As the object comes to rest the kinetic energy is…

Q: how much work does Ryan to dom to lift a 2.0 x 101 Kg bag of potatoes to his shoulder, 1.7 m above…

A: Given Mass of the bag m = 2.0 x 101 kg Height h = 1.7 m

Q: A 1200 N crate rests on the floor. How much work is required to move it at a constant speed (a) 5.0…

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Q: A four-horse carriage is accelerating by 6 m/s every three (3) seconds, carrying a total load…

A:

Q: The 2018 Pyeongchang gold medalist winner in a large hill ski jumping discipline, Kamil Stoch,…

A: Applying conservation of energy to calculate the final speed of the man…

Q: How much work (in J) is required to move a box that weighs 18 kg upward by 35 cm? Use the fact that…

A: Given, Mass  of the box m = 18 Kg Upward distance h = 35 cm = 0.35 m Acceleration due to gravity g =…

Q: A person pulls a 10 kg luggage along a level road for 5 m by exerting a force of 20 N at an angle of…

A:

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!