A box of books with mass 55 kg rests on the level floor of the campus bookstore. The floor is freshly waxed and has negligible friction. A bookstore worker applies a constant horizontal force with magnitude 25 N to the box. What is the magnitude of the acceleration of the box?
Q: A crate of mass m is connected to a cable and rests on a frictionless inclined plane. The plane…
A:
Q: Problem 70. A group of three skiers stand atop a hill inclined at a steady angle of 8°. One skier…
A: Given, θ=80μK1=0μK2=0.04μK3=0.1H=200 m
Q: 20 kg box sits on a level floor. The box does not move until you push on it with a horizontal force…
A:
Q: A rope is attached to a box with mass 122 kg and Person A is pulling the box to the right on the…
A: Given information: The mass of the box (m) = 122 kg The tension in the rope when the person A is…
Q: A child is pulling a red wagon full of toys (total mass is 9.50 kg). His pull is 35 N in magnitude…
A:
Q: „DATUM .. 37
A: Let the tension in the rope be T Weight of Block A, WA=150 N Weight of Block B, WB=50 N considering…
Q: A sled of mass 88 kg is being pushed up a slope with an applied force of 910 N. The slope is…
A:
Q: A student uses a force P of magnitude 55 N and angle 0 = 75° to push a 4.0 kg block across the…
A: Given: The mass of the block is m=4 kg. The magnitude of the force is P= 55 N. The angle with the…
Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 46 kg. You were pulling…
A:
Q: Question 3. A hockey puck with a mass of 0.5 kg slides horizontally on the frictionless ice of a…
A: Mass of the punk (m)= 0.5 kg Force F1 = 5 N and θ1=(-36.6) degrees Force F2 = 10 N and θ2=(-60)…
Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 50 kg. You were pulling…
A:
Q: A worker with mass m = 70 kg is trying to stretch his muscles with the help of a vertical wall.…
A: Given, Mass, m = 70 Kg Force exerted by each hand on the wall is F = 70 N Total force exerted on…
Q: A large crate has a mass of 120 kg and sits on a horizontal floor. You push on the crate with a…
A:
Q: F
A: Given: Mass m1 = 4.7 kg. Mass m2 = 2.4 kg. Upward force F = 6.4 N. Downward acceleration (a) = 4.7…
Q: is at rest on a horizontal floor. A 22 kg child sits on top of the box. A person pushes the box…
A: Net force = ma
Q: Mary applies a force of 78 N to push a box with an acceleration of 0.54 m/s2. When she increases the…
A:
Q: Four blocks with masses m1=5.00kg, m2= 5.10kg, m3= 7.00kg, m4= 7.20kg are pulled on a horizontal,…
A: solution: Given Values, Masses: m1=5.00 Kgm2=5.10 Kgm3= 7.00 Kgm4= 7.20 KgAngle (θ)=34°Force (F) =…
Q: Only two forces act on an object (mass=3.61 kg), as in the drawing. Find (a) the magnitude and (b)…
A: Given data: The mass m=3.61 kg The force Fx=40.0 N The force Fy=60.0 N
Q: One end of a rope is tied to a 11 kg hanging weight. The rope goes over a pulley and the other end…
A:
Q: A circus gymnast hangs from two ropes attached to the ceiling while lowering himself to the floor at…
A: Given: The angle of the first rope with vertical is 28.3°. The tension in the first rope is 352 N.…
Q: A sled and rider have a total mass of 50.5 kg. They are on a snowy hill. The coefficient of kinetic…
A: Given: Total mass of sled and rider is 50.5kg. The coefficient of kinetic friction is 0.170. The…
Q: Two boxes are placed on an inclined plane at angle a to the horizontal. The masses of the two boxes…
A: Consider the following diagram. It shows various forces on two boxess. On box 1, the forces are:…
Q: he top of a ramp, which is inclined at an angle of 20 degrees with respect to the horizontal.…
A:
Q: Ross and Rachel are fighting if they were on a break. Ross is trying to get his stuff weighing 150.…
A:
Q: A block with a mass of 6.66 kg is at rest on an inclined surface. The surface makes an angle of…
A: Given information: The mass of the book (m) = 6.66 kg The angle of inclination (θ) = 28.30
Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 47 kg. You were pulling…
A:
Q: The drawing shows a 20.5-kg crate that is initially at rest. Note that the view is one looking down…
A:
Q: A 2 kg box is against a vertical wall by a small force (f1=10n) perpendicular to the surface of the…
A:
Q: The drawing shows a 22.5-kg crate that is initially at rest. Note that the view is one looking down…
A: Given that--- Mass = 22.5 kg. Coefficient of kinetic friction = 0.395. Angle = 55 degree. We have…
Q: Mary applies a force of 78 N to push a box with an acceleration of 0.49 m/s2. When she increases the…
A: The applied force in first case is 78 N and acceleration is 0.49 m/s2. The applied force in second…
Q: A stacked pair of books with masses m1= 1.5 kg (bottom book) and m2 = 1.0 kg (top book) are tossed…
A:
Q: A block M₁ of mass 10.5 kg sits on top of a larger block M₂ of mass 20.5 kg which sits on a flat…
A:
Q: A box of mass 7.3 kg is slid along the floor. The initial speed of the box is 6 m/s and it comes to…
A:
Q: Your friend asks for help moving a box across the apartment floor and tells you that the box weighs…
A: The static frictional force on the box Fs=μsW=0.42·422=177.24 N The kinetic frictional force on the…
Q: kinetic
A: Given: Mass of the box, M = 13 Kg Mass of the second box, m = 5 Kg Coefficient of friction between…
Q: A block M1 of mass 10.0 kg sits on top of a larger block M2 of mass 20.0 kg which sits on a flat…
A:
Q: Sammy is doing a strength testing session on the turf in preparation for the upcoming basketball…
A: Mass of sled (m) = 105 kgCoefficient of static friction (us) = 0.3Sammy apply only horizontal…
Q: In deep space, an astronaut is whipping a heavy tool around in a circle by a taut cable. The cable…
A:
Q: A horizontal force of magnitude F = 56.2 N pushes on a block of mass m = 5.87 kg. The block is on a…
A: The objective of the question is to find the acceleration of the block on the incline in terms of…
Q: An 80.0 kg mail bag hangs by a vertical rope 3.7 m long. A postal worker then displaces the bag to a…
A: given data
Q: he movers are trying to get a heavy crate (mass m) up a ramp into the loading dock of a uilding. One…
A:
Q: A 51.9 kg crate is hung from the ceiling by two wires. Each wire makes an angle of 41 degrees with…
A:
Q: ou are pushing a wooden crate against a rubber floor. The two surfaces have a static coefficient of…
A: Given: The mass of the crate is 25 kg. The coefficient of the static friction is 0.45. The…
A box of books with mass 55 kg rests on the level floor of the
campus bookstore. The floor is freshly waxed and has negligible friction.
A bookstore worker applies a constant horizontal force with magnitude
25 N to the box. What is the magnitude of the acceleration of the box?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A block with mass m1 = 8.7 kg is on an incline with an angle θ = 37° with respect to the horizontal. The coefficients of friction are: μk = 0.36 and μs = 0.396. Another block with mass m2 = 15.5 kg is attached to the first block. The new block is made of a different material and has a greater coefficient of static friction. What minimum value for the coefficient of static friction is needed between the new block and the plane to keep the system from accelerating?Mary applies a force of 71 N to push a box with an acceleration of 0.45 m/s2. When she increases the pushing force to 79 N, the box's acceleration changes to 0.63 m/s2. There is a constant friction force present between the floor and the box. (a)What is the mass of the box in kilograms? ?kg (b)What is the coefficient of kinetic friction between the floor and the box?The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 74 N on the wall to which it is attached. The tensions in the shorter cords are T1 = 40.0 N, T2 = 32.0 N, and T3 = 8.0 N. What are the masses of each disk? (a) disk A kg(b) disk B kg(c) disk C kg(d) disk D kg
- Two blocks of masses M1 = 3.5 kg and M2 = 5.7 kg are at rest on a horizontal surface with a coefficient of friction uk = 0.12. You start them moving by pushing on block 1 with a force F1H = 33 N at an angle of 42 degrees below the horizontal. The magnitude of kinetic friction force on each bock is f1 = 6.76 N and f2 = 6.70 N Determine the acceleration of the blocks and the magnitude of the normal force between the blocks.Two horizontal forces, and F2, are acting on a box, but only is shown in the drawing. F₂ can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that F₁ = +4.6 N and the mass of the box is 3.6 kg. Find the magnitude and direction of F2 when the acceleration of the box is (a) +6.9 m/s², (b) -6.9 m/s², and (c) 0 m /s². (a) F₂ (b) F₁₂ (c) F₂ = II ◄► ◄► F₁ +xA stacked pair of books with masses m1= 2.0 kg (bottom book) and m2 = 1.5 kg (top book) are tossed onto a table. The books strike the table with no vertical velocity and their common horizontal speed is ?o = 0.75 m/s. The kinetic friction coefficient between the bottom book and the table is ?k1=0.45; the kinetic and static friction coefficients between the two books are ?k2=0.3 and ?s2= 0.4. Find the final horizontal position of each book relative to the spot where the stack hits the table.
- A hunter is pulling his sled 45 kg in mass behind him on snow. He exerts a pull of 170 N in magnitude and at 21 degrees above the horizontal to ensure he could move at a constant acceleration through the snow-covered land. The coefficient of friction between the sled and the snow is 0.43. What is the hunter's acceleration (could be positive or negative)?A mass is suspended from the ceiling in an elevator by a heavy rope. The mass is 80 kg and the mass of the rope is 2 kg. If the breaking strength of the rope is 1000 N, what is the maximum acceleration of the elevator such that the rope will not break?A box filled with appliances rests on a floor. Only gravity and the support force of the floor act on it. When a slight pull P is exerted on the box but not enough to move it, the force of friction would be: A equal to P B less than P greater than P zero
- You are given the job of moving a refrigerator with a mass of 1.8 x 102 kg across a horizontal floor. The coefficient of static friction between the refrigerator and the floor is 0.45. Calculate the magnitude of the minimum force that is required just to set the refrigerator into motion.A book of mass 9 kg rests on a plank. You tilt one end of the plank and slowly increase the angle of the tilt. The coefficient of static friction between the book and the plank is 0.48. What is the maximum angle of tilt for which the book will remain stationary and not slide down the plank?Two roofers are installing a new roof. Bob is sitting on the top of the roof that is angled at 23.5 degrees from the horizontal. Nate is sitting 4.1 m further down the roof. In order to get a box of shingles to Nate, Bob just slides the box directly down to him. If the coefficient of kinetic friction for the box and roof is 0.5, then with what speed should Bob initially push the box so that it slides to a stop right as it reaches the Nate?