Calculate the work done on a 1500-kg elevator car by its cable to lift it 50.0 m up at constant speed, assuming friction averages 100 N.

Q: The loaded cab of an elevator has a mass of 4.70 × 103 kg and moves 191. m up the shaft in 24.0 s at…

A: Calculate the constant speed at which the elevator is moving. v=Dt=191 m24 s=7.958 m/s Here, v is…

Q: A 5 kg object is pulled diagonally with 20 degrees angle by a 12N force on a surface with a…

A:

Q: A 7.80-g bullet moving at 520 m/s penetrates a tree trunk to a depth of 5.30 cm. (a) Use work and…

A: a)Write the mathematical expression for work energy theorem.

Q: A 4.4-kg block is pushed 3.5 m up a vertical wall with constant speed by a constant force of…

A: Given information:Mass of the block (m) = 4.4 kgCoefficient of friction between the block and the…

Q: A train of total weight 300 tons travels up a 1 :200 incline. The total frictional resistance can be…

A: We will first find the incline, and then the component of force acting along the inclined plane. The…

Q: (a) Calculate the work done (in J) on a 1700 kg elevator car by its cable to lift it 41.0 m at…

A:

Q: man pushes a piano of mass 200 kg up a ramp so that it rises with constant speed a distance of 3.00…

A:

Q: F=30N 25°

A:

Q: If it takes 5.00 J of work to stretch a Hooke’s-law spring 10.0 cm from its unstressed length,…

A: Given that, The work done to stretch a spring 10 cm from its unstressed length is 5 J. We need to…

Q: Suppose a 1400-kg elevator car is lifted a distance 42 m by its cable at a constant speed, assuming…

A: The objective of the question is to calculate the total work done on the elevator. The work done on…

Q: A block of mass m is placed on a rough inclined surface making an angle of θ=43o with the…

A:

Q: A horizontal force of 150 N is used to push a 38.0-kg packing crate a distance of 7.00 m on a rough…

A: (a) The work done by the force is

Q: If the four Pratt & Whitney PW4000 turbofan engines of a Boeing 747-400 aircraft do 5620 Million…

A:

Q: A 10 kg mass is given an initial speed of 10 m/s up a 30o incline plane with coefficient of friction…

A:

Q: A cable exerts a constant upward tension of magnitude1.25 x 104 N on a 1.00 x 103-kg elevator as it…

A: Given,The magnitude of upward tension, T=12500NMass of the elevator, m=1000kgThe distance the…

Q: The ultralight plane Gossamer Condor in 1977 was the fi rstto complete the Kremer Prize fi…

A: Given: Mass of the wing = 95 Kg Width of the wingspan = 29 m Power delivered = 1/4 Hp

Q: If a box is initially sliding across a floor at velocity v. After a short time, it comes to rest.…

A: Friction is easily defined as the force that holds back a sliding object. kinetic friction is a part…

Q: Ali is pushing a wooden box of weight 78N for 2m on a rough floor using a horizontal force of 120 N.…

A: weight of box = m g = 78 NDisplacement = S = 2 mhorizontal force = F = 120 Ntotal work = W = 190 J

Q: The Outlaw Run roller coaster in Branson, Missouri, features atrack that is inclined at 81° below…

A: Given,

Q: If it takes 5.00 J of work to stretch a Hooke's-law spring 10.0 cm from its unstressed length,…

A: Given,

Q: A car drives along the highway, maintaining a constant speed of 29 m/s. For all questions below,…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: (a) Calculate the force needed to bring a 1050 kg car to rest from a speed of 80.0 km/h in a…

A: a)The required force from work energy theorem,

Q: An elevator has a rated capacity of 1000 kg. It can transport people at the rated capacity between…

A: Given data m=1000 kgd=5 mt=7 sec

Q: (a) Calculate the work done (in J) on a 1200 kg elevator car by its cable to lift it 38.0 m at…

A:

Q: A cable exerts a constant upward tension of magnitude 1.04 x 10^4 N on a 1.60 x 10^3  kg elevator as…

A:

Q: A hummingbird hovers by exerting a downward forceon the air equal, on average, to its weight. By…

A: Given,

Q: A 7.80-g bullet moving at 620 m/s penetrates a tree trunk to a depth of 5.40 cm. (a) Use work and…

A: Given data The mass of the bullet is m = 7.80 g = 0.0078 kg The initial velocity of the bullet is: u…

Q: (a) Calculate the work done (in J) on a 1200 kg elevator car by its cable to lift it 38.0 m at…

A:

Q: A horizontal f orce of 140 Newton is needed to pull a 60.0 kilogram box across a horizontal floor at…

A: Given,Mass of the box, m = 60.0 kgHorizontla Force, F = 140 Nbox is moving with constant speed.

Q: The work is done by this force as the box moves 6.0 m is

A: Given data: The box's mass is: m = 12 kg The force at an angle is: F = 15 N The angle made by force…

Q: energy to find the suitcase's coefficient of kinetic friction assuming that the local acceleration…

A: Given value--- mass = 12 kg. initial velocity = 2.45 m/s. final velocity = 0 m/s. distance = 1.45…

Q: Pulling a cube of weight (356N) a distance (610cm) on flat ground with a constant launch after…

A:

Q: determine the work done to drag this piano horizontally along 2.0m of the level with the coefficient…

A: Given data: Dragging distance is, s=2.0 m. Coefficient of friction is, μ=0.45

Q: ASK YOU A 7.80 g bullet is initially moving at 620 m/s just before it penetrates a block of wood to…

A: Given data: Mass of bullet is, m=7.80 g=7.80×10-3 kg. Initial speed of bullet is, u=620 m/s. Depth…

Q: The loaded cab of an elevator has a mass of 4.70 × 103 kg and moves 191. m up the shaft in 24.0 s at…

A:

Q: A 7.80-g bullet moving at 560 m/s penetrates a tree trunk to a depth of 5.80 cm. (a) Use work and…

A: use work energy theoremwork done = change in kinetic energy - frictional force * d = - (1/2)m (U)2 f…

Q: work and energy considerations to find the average frictional force that stops the E uming the…

A: Work energy theorem states that  Work done = change in kinetic energy