How much breaking speed does the cable car need to descend at a constant speed? One day the brakes fail just as the cable car leaves the top on its downward journey. What is the runaway car’s speed at the bottom of the hill?

Q: m The elevator at the space needle starts from rest and accelerates relative to its position…

A: Given data with suitable variables is shown below. as=−0.085s+3 m/s2vmax=9.05 m/sh=41 m

Q: The 10 kg block A slides down the plane with a constant velocity when = 30°. Determine the equations…

A:

Q: You pull on a string with a horizontal force of magnitude Fyb = 59 N that is attached to a block of…

A:

Q: The free body diagram below shows the forces acting on the bob when it spins at a rate such that it…

A: GivenFS=string force Fe=Elastic force W=weight of the bob

Q: 3. A mass m (2.0 kg) is attached to a horizontal spring of spring constant k (25 N/m) which is held…

A:

Q: Q1/A vehicle of 1.2 Mg mass is descending a 17° gradient. The coefficient of adhesion between the…

A:

Q: An object of mass 3M, moving in the +x direction at speed Vo, breaks into two pieces of mass M and…

A:

Q: A 0.23 kg block is pressed up against a spring on a frictionless incline of angle 0 = 20.0° to the…

A:

Q: 4) A spacecraft designed for Martian impact is on a course heading directly toward the center of the…

A: Given:The distance of spacecraft from the surface of the planet, The initial velocity of the…

Q: : Tom is interviewing for a new job – a test driver. He was asked to determine whether a vehicle…

A:

Q: Q24. The buoyancy force on the 580-kg balloon is F = 6 kN, and the air force acting on the balloon…

A: Given data: The buotancy dorce on the 580 kg balloan F=6KNFair=C1.ti-C2.tjC1=24C2=240g=9.81 m/s2…

Q: For a short period of time, a m = 3400 kg truck has a frictional driving force of Fp (650-²) N…

A: mass = m = 3400 kgFD=650t2 NAt, t=0, v1=5 m/s To find: The speed of truck when t = 3 s

Q: 5 Problem A m = 200 lbs man sitting at one end of the boat travels from one end of the boat to the…

A:

Q: A ball is thrown vertically up from the top of a building with height h= 30m with an initial speed…

A:

Q: Neglecting the resistance of the medium. Find the displacement in ft after 9 seconds of an 16 lb…

A: As per given  We have to determine displacements in ft after 9 s

Q: You are riding your mountain bike down a hill that is inclined at an angle of 0 degrees above the…

A: The total heat generated while stopping the the bike is the total work done by the frictional force…

Q: A 200 N block slides from rest down a plane inclined 25° to the horizontal. Assuming =0.20, what…

A: The coefficient of friction is the proportion of the frictional force preventing motion between…

Q: This pendulum is made up of a 20-pound weight at the end of a cord that can be considered…

A:

Q: An electric motor M is used to reel in cable and hoist a bicycle into the ceiling space of a garage.…

A:

Q: 6. Assume that m₁ = 2.5 kg and m2 = 4 kg. The pulley is frictionless and massless and the string…

A: masses are Angle of inclinationSpring constantCoefficient of friction

Q: A rope of length L = 1.5 m and mass m = 2.3 kg is initially at rest and can slide on an inclined…

A: b = 0.22 μk=0.47

Q: A 1-lb stone is dropped down the "bottomless pit" at Carlsbad Caverns and strikes the ground with a…

A:

Q: Q4. A block is connected to a spring of length s that is initially unstretched. Then the block is…

A:

Q: A 0.515-oz model rocket is launched vertically from rest at time t = 0 with a constant thrust of 0.9…

A:

Q: A small box of mass m is placed on top of a larger box of mass 2m as shown in Figure. When a force…

A:

Q: 00-kg box is towed to move horizontally from rest by a constant force P=200 N. The kinetic friction…

A: Given:m=100 KgP=200 Nμk=0.1θ=30°g=9.81m/s2

Q: A simple pendulum is made of a 50 cm-string and a bob of mass m. At t = 0, the pendulum is at its…

A:

Q: The motor, M, pulls on the cable with a force F = (10t2 +300) N, where t is in seconds. Neglect the…

A: Given data  Force F = (10t2 +300) N Mass of crate (m) = 100 kg  Find the speed of crate when t = 4.5…

Q: consider the mass and pulley system in the attached file. mass m1 = 29 kg and mass m2 = 12kg. the…

A:

Q: Select a type of car and give the specifications of its suspension system. If this car goes over a…

A:

Q: The vehicle shown starts from rest at the bottom of the hill and accelerates up the hill due to the…

A: Given data mass of car = 1600 kgFR = 7300 Nvtop  = 9.7 m/sh = 50 m

Q: In a modified version of the cart and bucket, the angle of the slope is alpha = 34.9∘ and the bucket…

A:

Q: In an amusement park ride, riders stand against the vertical wall of a spinning cylinder. The floor…

A: Given data: Radius of cylinder = r No of revolutions per minute = N Coefficient of Friction = mu…

Q: 1) A cable is attached to a 0.5 kg block that slides over the smooth rigid horizontal rod AB. The…

A: Draw the free-body diagram of the block.

Q: A cart is moving in a track which is shown in the bellow picture(both friction and rotation is not…

A: 1-point A , Kinetic energy is zero (v=0)

Q: A happy kangaroo leaps vertically upward at a time t = 0. At time t = 0.50 s the kangaroo is at a…

A:

Q: For a short period of time, a m = 3400 kg truck has a frictional driving force of FD= (650- +²) N…

A:

Q: A crane is lifting a system with a constant speed. The weight of each object is shown. Neglect the…

A:

Q: 3. A block of mass m is connected to a spring of spring constant k and lies on a frictional road.…

A:

Q: A car travelling at a horizontal path (starting from rest) encounter a resistance four times its…

A: To find: The distance travel by the car. Given: The resistance is FR=4V. The engine trust is F0=400…

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.