During walking, a 90 kg older adult starts at rest and begins moving (on carpet, coefficient of friction of 0.55) with a horizontal velocity of 0.95 m/s and a vertical velocity of 0.10 m/s. It takes them 0.45 seconds to reach these velocities. This movement comes as a result of a GRF that is directed upward and forward above the horizontal. The only other force in the problem is friction apposing their motion and gravity. How large is the GRF and the frictional force in this situation.

Q: A car is traveling at 41.0 km/h on a flat highway. (a) If the coefficient of friction between road…

A:

Q: A force 450 N pushes on a 36.7 kg box at an angle of 50° from the horizontal. Starting from rest ,…

A: Given: F=450 Nm = 36.7 kgθ = 50°u = 0 m/sv =18.8 m/st=7.6 s

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A: Use the kinematic equation to solve for the velocity of the diver when she touches the water.

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A:

Q: A high diver of mass 69.8 kg steps off a board 10.0 m above the water and falls vertical to the…

A: Use the kinematic equation to solve for the velocity of the diver when she touches the water.

Q: THREE 5-KG PACKAGES A, B, AND C ARE PLACED ON A CONVEYOR BELT THAT IS AT REST. BETWEEN THE BELT AND…

A: We can assume that if the boxes are to move, they will move to the left side. So we can say that if…

Q: A block has a mass of M equals 3.5 KG rests on a horizontal plane. The coefficient of static…

A: Given mass block = M =3.5 kg (rests on a horizontal plane) The coefficient of static friction = 0.15…

Q: A high diver of mass 57.2 kg steps off a board 10.0 m above the water and falls vertical to the…

A: Given:Mass of the diver, m = 57.2 kgHeight of the board from the surface of water, h = 10 mTime…

Q: A car weighing 1202kg accelerates from a stop to 100km/hr in 4.3 sec going up a ramp at an angle of…

A: Given quantities: Mass of the car (m) = 1202 kg initial velocity of car (u) = 0 final velocity of…

Q: Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the…

A: The force of static friction can be given by FS=μsN=μsmg Also, FS=-ma Comparing the equations give…

Q: A car is traveling at 40.0 km/h on a flat highway. (a) If the coefficient of friction between road…

A:

Q: Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the…

A: The load can remain at one place only by the force of friction, so the force of friction and the…

Q: running

A: When the two bodies move over one another then there is friction between them. The static friction…

Q: A 43.0 kg skier skis directly down a frictionless slope angled at 14.0° to the horizontal. Choose…

A:

Q: A car of mass 1000.0 kg is traveling along a level road at 100.0 km/h when its brakes are applied.…

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Q: Two horizontal forces act on a 2.7 kg chopping block that can slide over a frictionless kitchen…

A:

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

A: By using Newton’s second law in the horizontal direction We can write, For distance

Q: A block of mass M = 2.0 kg rests on a rough horizontal surface. The block starts to slide when a…

A:

Q: how long (in seconds) will it take the block to reach its maximum height

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Q: A heavy box of mass M is found at rest on an inclined loading ramp as indicated in the figure. The…

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Q: 3. An off-road vehicle (WA= 600 N) is connected with a rope to a load (w= 250 N) which hangs on the…

A:

Q: A box with a mass of 8.80 kg slides up a ramp inclined at an angle of 26.5° with the horizontal. The…

A: (given) Mass of box = 8.80 kg Initial speed of the block = 1.62 m/s Initial kinetic energy of the…

Q: A box of mass 3.6 kg is given an initial speed of vo = 7.1 m/s along a ramp as indicated in the…

A:

Q: A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at…

A:

Q: Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the…

A: The objective of this question is to calculate the minimum stopping distance for the truck for which…

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A: Required distance travelled before stopping of the car.

Q: THREE 5-KG PACKAGES A, B, AND C ARE PLACED ON A CONVEYOR BELT THAT IS AT REST. BETWEEN THE BELT AND…

A:

Q: A block with a mass of 3.00 kg begins at rest and moves down a lengthy ramp inclined at 22.0 degrees…

A:

Q: A car is traveling at 51.0 km/h on a flat highway. (a) If the coefficient of friction between road…

A:

Q: A 1370 kg car is skidding to a stop along a horizontal surface. The car decelerates from 25 m/s to a…

A: Initial speed, u = 25 m/s Final speed, v = 0 m/s Time, t = 2 s Mass of the car, M = 1370 kg…

Q: A box slides along a horizontal floor with an initial speed of 2.5 m/s. It comes to rest after…

A:

Q: high diver of mass 51.6 kg steps off a board 10.0 m above the water and falls vertical to the water,…

A: Given Mass of diver m = 51.6 kg Height h = 10.0 m

Q: In the figure, a block of mass m = 3.71 kg is pulled along a horizontal frictionless floor by a cord…

A: Given  values: Block of mass, m=3.71 kg Applied force, F=12.7 N Angle, θ=26° Resolving all the…

Q: The box below has been given an initial velocity of 2.60 m/s directed up the ramp. The angle the…

A: Given that:- Initial velocity of ramp=2.6m/s up the ramp

Q: Consider a wooden ramp angled 49.6 degrees above horizontal. If a 22.4-kg wooden block is given a…

A:

Q: In the figure, a block of mass m = 5.44 kg is pulled along a horizontal frictionless floor by a cord…

A: Subpart (a): When the block moves along the floor, the horizontal component of the applied force…

Q: How far does the car travel before stopping?

A:

Q: A small locomotive of mass 500 kg pulls 2 coaches of mass A 120 kg each and mass B 180 kg. If trains…

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Q: Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the…

A: Determine the normal force on the load.

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.