Junry pulls his wife, who’s mass is 50 kg and who is sitting on a swing with rope of length 5 m, backward until the rope make an angle of 50° with respect to the vertical. He then releases his wife from rest. Determine the speed of his wife when the rope makes an angle of 20° with respect to the vertical?

Q: The mass of the blue puck shown below is 20.0% greater than the mass of the green one. Before…

A: Given data: The initial velocity of green puck is vgi=8.0 m/s. The mass of blue puck is 20% greater…

Q: 7) A 12 kg box is at rest at the top of a ramp (point A). The length of the ramp is 8.0 m long, and…

A:

Q: There is a 2 car accident. Car 1 (1550 kg) slides on ice at 15m/s and it runs into another car…

A: Mass of car 1 is m1 = 1550 kg Speed of car 1 initially is u1 = 15 m/s Mass of car 2 is m2 = 3250 kg…

Q: An 86.0 kg skydiver jumps out of a balloon at an altitude of 1 340 m and opens the parachute at an…

A: Mass of the skydiver, m = 86.0 kg Initial altitude, h1 = 1340 m Altitude at which the parachute is…

Q: A roller coaster car has a massive 320 kg. Starting from the rest the car requires 3.5×10^5 joules…

A:

Q: speed of the ring when the spring becomes

A: Given; Spring makes an angle =370Its natural length l and spring constant k is fixed on the ground…

Q: Sonic the Hedgehog (mass 2 kg) starts at rest on a jump spring that is compressed 1.9 m and has a…

A: Given: The mass of the sonic is 2 kg. The compression in the spring is 1.9 m. The spring constant is…

Q: Marzan has a mass of 80kg. He wants to use a vine of length 10m to swing across a river in the…

A: Given Information,Mass of Marzan (M) = 80 kgLength of the Vine (l) = 10 mMaximum velocity Marzan can…

Q: A 100-kg Cabrillo student is launched by a spring (k = 80,000 N/m) that is initially compressed by…

A: The energy of interacting bodies or particles in a closed system remains constant due to…

Q: boxes have masses of 13 and 41 kg. If A and B are 4.0 and 0.5 m, respectively, above the ground,…

A: Masses are given as,A and B are a a distance of 4 and 5 meter respectivelly Diagram is for the the…

Q: You set up a ramp as depicted to practice your skateboard skills. The ramp is a wooden board L=7.5 m…

A: Given, L = 7.5 m h = 1.3 m vi = 11 m/s Mass m = 95 Kg Friction f = 71

Q: A cart, of mass m, is released at the top of a ramp of distance d and height h as shown. Neglect…

A:

Q: A cyclist drives off a 30 m high cliff. If her initial speed is entirely horizontal, how fast will…

A:

Q: In the figure below, a block of mass m = 11 kg is released from rest on a frictionless incline…

A:

Q: A ball of 1,500 grams is kicked at an angle of 35° with the ground with an initial velocity V0. a)…

A:

Q: A ball is released from rest a point A at the top of a hilly, frictionless track. Rank the speed of…

A: Given data:  The ball is released from the rest The initial position of the ball is at point A The…

Q: A block on a horizontal spring slides along a horizontal frictionless surface. The mass of the black…

A: The mass of the block is given as .The spring constant of the block is The block is stretched a…

Q: A body with a mass of 8.06 kg moves along the x-axis, influenced by a conservative force F(x). F(x)…

A: The potential energy can be calculated as, U=∫0x-F·→dx=∫0x-Ax3dx=4Nm3∫0xx3dxU=4x44=x4 J For a…

Q: A runner with mass 100 kg run at speed 25km/h on a wet road with friction force equal to : * O 245.2…

A:

Q: 40-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the…

A:

Q: The 23 kg girl in the swing at (A) is at a height of 0.80 m above position (B). What is the speed of…

A:

Q: A block of ice with mass 2.00 kgkg slides 0.935 mm down an inclined plane that slopes downward at an…

A: Given data: Mass of ice block is, m =2.00 kg . Sliding distance is, s =0.935 mm=0.935×10-3 m. Angle…

Q: In the figure, a block of mass m = 20 kg is released from rest ona frictionless incline of angle 0 =…

A:

Q: 7) A 12 kg box is at rest at the top of a ramp (point A). The length of the ramp is 8.0 m long, and…

A:

Q: In the figure, a block of mass m = 15 kg is released from rest on a frictionless incline of angle 0…

A:

Q: throw a ball vertically upward. When you let go of the ball, it has a kinetic energy K0 (assume the…

A: Kinetic energy = (1/2)mv2

Q: A stone of mass 80 g is dropped onto an unstrained vertical spring with a spring constant k = 0.8…

A:

Q: In a roller coaster the ride includes a vertical drop of 120 m. Suppose that the coaster  has a…

A: Given, Height of fall,h=120 m Speed at top,u=4 m/s

Q: An object of mass 2.5 kg sliding on a horizontal frictionless surface with a speed of 4m/s collides…

A: Given  m = 2.5 kg    v = 4 m/s  Compression (x) = 40 cm                                 = 0.4 m  At…

Q: A 75-kg skier starts from rest at the top of a hill that makes an angle of 35◦ below the horizontal.…

A:

Q: A pendulum bob is released from some initial height such that the speed of the bob at the bottom of…

A:

Q: A cart of mass 25.1 kg is initially at rest on a flat surface. You exert a force with magnitude…

A: Given that:m=25.1 kgFyc(x) = Foe-xxa Fo=200.2 Nxa=5 mθ=56.8°To determine:The speed of the cart after…

Q: Current Attempt in Progress In the figure, a frictionless roller coaster car of mass m = 815 kg tops…

A:

Q: we have a mass, m, situated at a height, h, above an ideal spring with force constant k.  The mass…

A: At the highest and lowest position of the spring, the velocity of the mass is zero, thus initial and…

Q: Noel is playing on a swing and has a weight of 60.0Newtons. Approximately, what is his maximum speed…

A: Given data :- weight W = m.g = 60 N initial height h = 0.50 m final maximum height H = 3.00 m

Q: Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an…

A: To Find: Speed of the arrow immediately after it leaves the bow.

Q: A mass of 3.77 kg is launched straight upward. At some instant later it has lost 62.8 J of kinetic…

A: Using work energy theorem  energy lost =energy gained

Q: An electron in a television tube is accelerated uniformly from rest to a speed of 8.4×107m/s over a…

A:

Q: Blocks 1 and 2, with masses m₁ and m2, are placed on a frictionless, horizontal table with an ideal…

A: