A coffee cup on the horizontal dashboard of a car slides forward when the driver decelerates from 45 km/h to rest in 3.5 s or less, but not if she decelerates in a longer time.What is the coefficient of static friction between the cup and the dash? Assume the road and the dashboard are level (horizontal).

Q: A car drives onto a section of the road which is covered in ice. The driver attempts to stop by…

A: stopping distance(s)=60m initial speed(u)=40 km/h=40×1000 m3600 sec=11.1111 m/sec final speed(v)=0…

Q: Fig. 2 F1 +y 55.0 - +x 54.0 N F2 2. Fig. 2 shows a 25.0-kg crate that is initially at rest. Note…

A: Given: Mass of crate: 25 kg kinetic friction: μk=0.350 Force F1 has two components in x and y…

Q: A hockey puck having initial speed of 3.8 m/s comes to rest after a distance of 7.6 m. What is the…

A:

Q: Option #2: A roller coaster car is at the top of a huge hill and is at rest briefly. Then it rolls…

A:

Q: A 397 N crate rests on a ramp; the maximum angle just before it slips is 33° with the horizontal.…

A: Concept: The Schematic diagram of the system is Here, N= Normal Force N=mgcosθ And, Fs= Static…

Q: This first part is at a angle of 30 degrees and it's 3 meters long. The other is at 45 degrees and…

A: According to the question the diagram of the scenario is:

Q: If the maximum coefficient of kinetic friction between 1855 kg Toyota Innova Crysta and a road is…

A: Maximum coefficient of kinetic friction           μm=0.6Mass of the car is M= 1855 kgFrictional…

Q: Two blocks m, = 9 kg and m2 are connected as shown below. The two blocks are in static equilibrium.…

A: Given data: Mass of block 1 (m1) = 9 kg g= 10 m/s2

Q: You are trying to push a box with a fragile vase sitting on top of it across the room. Starting the…

A: Given: The box starts from rest. Distance moved (s) by the vase and the box is 5 meters. Time (t)…

Q: A car is traveling at 48.0 km/h on a flat highway. If the coefficient of friction between road and…

A:

Q: The drawing shows a baggage carousel at an airport. Your suitcase has not slid all the way down the…

A:

Q: A 35 kg block is at rest on an inclined plane at 13°. What is the magni- tude of the normal force on…

A: By using free body diagramAccording to Newton's third lawN=mg.Cosθ                  Equation 1

Q: A car is traveling at 46.0 mi/h on a horizontal highway. (a) If the coefficient of static friction…

A: Given Data: Initial speed of the car (u) = 47 mi/h = 21.0 m/s. Final speed of the car (v) = 0 m/s.…

Q: A car starts from rest and is traveling at 60 mph after 15 seconds. The driver immediately lifts…

A: As V=Vi+at S=Vit+1/2at2

Q: There are nine books in a stack, each with a weight of 5.5 N. The coefficient of friction between…

A: Given that - Weight of each books Coefficient between the table and bottom book.

Q: A hockey puck is hit on a frozen lake and starts moving with a speed of 15.0 m/s. If the coefficient…

A: initial velocity, u = 15 m/s  friction coefficient, μk =  0.2  time, t = 5 s

Q: An empty box is travelling on the conveyor with 0.2 m/s, then 12 kg package is dropped into this box…

A: please see the next step for solution

Q: A 10kg monkey is hanging from branches. The angles that the monkeys arms make with the horizontal…

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Q: A 78 kg crate rests on a rough horizontal surface. The coefficient of static friction and…

A: Mass (m) = 78 kg coefficient of static friction and coefficient of kinetic friction are 0.3 and 0.2…

Q: 270 N 50°7 B 400 N 30 D 30

A:

Q: A hockey puck on a frozen pond is given an initial speed of 20 m/s. If the puck always remains on…

A: Using kinematics equation, v2=u2+2asa=v2-u22s Use the given values, a=0-20 m/s22115 m=-1.74 m/s2

Q: A hockey puck having initial speed of 2.5 m/s comes to rest after a distance of 8.0 m. What is the…

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Q: You go to slide your chair out from under the table at Thanksgiving at your grandma's house. She…

A: In the given question, Combined mass of the person and the chair (m) = 62kg Coefficient of static…

Q: A hockey puck ( mass 160 grams ) slides across the ice. It's initial velocity is 10 m/s. If the…

A: ⁰

Q: In the sport of curling, players slide a 20.0 kg granite stone down a 38.0 m long ice rink. The…

A:

Q: The coefficient of static friction between hard rubber and normal street pavement is about  0.89. On…

A: Given that coefficient of static friction between rubber and normal Street pavement is 0.89. Then We…

Q: Seat belts and air bags save lives by reducing the forces exerted on the driver and passengers in an…

A:

Q: At what maximum speed can a car exit onto a 40-m-radius circular freeway ramp without sliding if the…

A: Given  Radius r=40m Coefficient of static friction μs=0.9

Q: A box (400 kg) sits inside the trailer of a semitruck traveling at a speed of 25 m/s (~ 55 mph).…

A: As per the guide lines first three sub parts are answered. Kindly post the remaining question as a…

Q: g up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between…

A: GivenAngle, θ=15°Initial velocity, u=30 m/sCoefficient of static friction between the tires and the…

Q: A box rests on the (horizontal) back of a truck. The coefficient of static friction between the box…

A: The truck's maximum travel distance in 3.0 seconds without the box sliding must be ascertained.

Q: Two blocks of masses M1 = 3.5 kg and M2 = 5.7 kg are at rest on a horizontal surface with a…

A:

Q: stacked pair of books with masses m1= 2.0 kg (bottom book) and m2 = 1.5 kg (top book) are tossed…

A: The normal force exerted by the table on the first bolook N1= its weight = mg= 2×10=20 N . Similarly…

Q: A hockey puck is hit on a frozen lake and starts moving with a velocity of 22.0 m/s. It travels…

A:

Q: Mohamad is driving a car with a speed of 19 m/s when he sees Ahmed 60 m away. If he manages to stop…

A: Given: The initial speed of the car is 19 m/s. The final speed of the car is 0 m/s. The distance…

Q: hot air balloon begins to rise from rest. The lift on the balloon due to the buoyant force is 5000…

A:

Q: The coefficient of static friction between Teflon and scrambled eggs is about 0.029. What is the…

A:

Q: An experimental rocket plane lands on skids on a dry lake bed. If it is traveling at 80.0 m/s when…

A: Given data: Initial velocity(u)=80m/s Coefficient of friction(kinetic)=0.6000 Final velocity(v)=0

Q: You are working as a letter sorter in the Post Office. Postal regulations require that employees’…

A: Write the given values of the problem- Minimum coefficient of friction required for employee fotware…

Q: A block is sliding along a horizontal surface where the coefficient of kinetic friction is 0.5…

A: Given Data: The coefficient of kinetic friction between the block and the surface is, μk=0.5 The…

Q: A 1.6 kg box is at rest on a ramp of angle 22°. The coefficient of maximum static friction is 0.56…

A: Given:-  The coefficient of the static friction force is 0.56. the coefficient of the kinetic…

Q: You want to park on a very steep street in San Francisco, which has an angle of about 30 degrees.…

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: