A person places a cup of coffee on the roof of his carwhile he dashes back into the house for a forgotten item. When hereturns to the car, he hops in and takes off with the coffee cup stillon the roof. (a) If the coefficient of static friction between the coffee cup and the roof of the car is 0.24, what is the maximum acceleration the car can have without causing the cup to slide? Ignorethe effects of air resistance. (b) What is the smallest amount oftime in which the person can accelerate the car from rest to15 m>sand still keep the coffee cup on the roof?

Q: (a) What is the weight of a 4.03 kg backpack? (b) What is the acceleration of the backpack if a net…

A: Given, Mass of backpack, m=4.03 kg Force applied,F=10 N

Q: a 15kg box rest on a horizontal surface. (a) what is the minimum horizontal force that is required…

A:

Q: move a large crate of mass 32.0 kg across a rough floor, with coefficient of kinetic friction…

A: According to Newton's second law F = ma So acceleration a = F/m

Q: A person moves a 85 kg object by applying a force F = 310 N at an angle of 30° above the horizontal.…

A:

Q: A box is sliding along a slippery, horizontal floor at a constant speed of 3.0 m/s. It encounters a…

A:

Q: A block of mass 5.0 kg rests on a horizontal surface where the coefficient of sliding kinetic…

A:

Q: of mass 875 kg applies the brakes, which lock the wheels. The car skids for 5.60 s in the positive…

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Q: Two blocks A and B are released from rest on a 30° incline when they are 13 meters apart. The…

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A:

Q: Suppose we would like the landingspeed of block 2 to be increased to 1.50 m>s. (a) Should the…

A:

Q: Holding a long rope by its upper end, youlower it onto a scale. The rope has a mass of 0.13 kg per…

A: Given,

Q: The parachute on a race car of weight 8 820 N opens at theend of a quarter-mile run when the car is…

A: Given:Weight of the race car of the parachute = 8820 NInitial velocity = 35 m/sFinal velocity = 0…

Q: *66. The person in the drawing isstanding on crutches. Assume thatthe forceexerted on each crutch by…

A: The expression for the net vertical and horizontal forces,

Q: A car is travelling at 50.0 km/h on a flat highway. (a) If the coefficient of frictin between road…

A: Given :  vo = 50.0 km/h = 50.0(1000/3600) = 13.9 m/s v = 0 m/s (because finally the car stops)

Q: A 244N crate resting on a plane inclined 35 - degrees with the horizontal requires a 26.1N force to…

A: Given data: The weight of crate is W=244 N. The inclination of plane is α=35°. The inclination of…

Q: A traveler pulls on a 25 kg suitcase strap at an angle 36° above the horizontal. If the suitcase…

A: Given data:  Mass (m) = 25 kg Angle (θ) = 36° , above the horizontal  Initial velocity (u) = 0 m/s…

Q: A 60 kg man riding a 15 kg bicycle took 8 seconds to reach a constant speed 4.0 m/s from rest.…

A: Given Data : The mass of the man is given as m = 60Kg. The mass of the bicycle is given as mb =…

Q: A person is skiing in a horizontal snow surface with a net acceleration of 0.2 meters per second per…

A:

Q: Using the strap at an angle of 31 o above the horizontal, a Grade 12 Physics student, tired from…

A: GivenMass of bagm=15 kg

Q: never

A: Given: Let the coefficient of static friction between the floor of the truck and box is μs. The…

Q: An object of mass 10 kg is reloased trom rest 4000 m above the ground and alowed to fall undor the…

A: Given Object mass (m)                       = 10 kg Released from x (t)                   = 4000 m…

Q: Fpush An box on a rough horizontal surface has a maximum possible static friction of 5 N and kinetic…

A:

Q: A father pushes his newborn baby in a running stroller with a force of 300 N. The handle is inclined…

A: Consider the free body diagram of the stroller with a baby.   Let the force applied by the father…

Q: A mass of 1.8 kg is initially at rest upon a horizontal surface. An applied force of 17.5 N i then…

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Q: A 19.0 Ib box is placed on the ground. (a) What force (in Ib) does the ground exert on the box?…

A:

Q: The nucleus of "Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously…

A: Given value--- they are 4.88 x 105 m apart. We have to find--- (a) What is the force between the…

Q: What would a person’s speed be if they free fell for 12 seconds instead (no air friction present)?

A:

Q: Block B, with mass5.00 kg, rests on block A, withmass 8.00 kg, which in turn is ona horizontal…

A: Given that,The mass of Block B = 5 kg If the applied force on block A and B is equal to the…

Q: A stock car accelerated from rest down a track length d=400.0m. In the absence of any friction the…

A: track length (d) = 400 m acceleration (a) = 26 ms2mass (m) = 990 kg fr = 1000 N

Q: block of mass m1 hangs from an ideal rope attached to a block of mass m2  which sits on an incline…

A: (a) Draw a separate free body diagram for each mass. Free body diagram for m1 Diagram :  The forces…

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: