You hang a ball using a 0.240m long string to a window. You pull it at an angle of 22.0° and then release it. a. how much time does it take for the ball to reach its highest speed? b. how much time does it take if the pendulum is released at an angle 11.0°

Q: What is the distance L which the block has moved down the incline at this moment?   B.) What is…

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Q: A physics student decides to go bungee jumping from a 250m tall bridge. (a)How long will it take her…

A: In bungee jumping, the person falls freely only under the influence of gravitational attraction. The…

Q: • VP2. A truck is moving with constant acceleration a up a hill that makes an angle P with the…

A: angle between truck and hill = ϕ pendulum angle = θ mass = m

Q: A 72.0-kg man stands on a spring scale in an elevator.Starting from rest, the elevator ascends,…

A: Given : Mass of a man (m) = 72 kg Speed of an elevator (v) = 1.2 m/s Time (t) = 0.8 s

Q: A block is given a very brief push up a 30.0° frictionless incline to give it an initial speed of…

A: Given: Initial velocity along the inclination u =10m/s Inclination angle =30° Now applying energy…

Q: A.| A family of four with a total mass of 350 kg steps into a 1350 kg car, and the springs compress…

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Q: A block with a mass of 1.20 kg is tied to a string and is swung in a horizontal circle, while the…

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Q: The applied force is no longer applied, and the block is still on the new surface with a force of…

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Q: A75.0 kg man stands on a platform scale in an elevator. Starting from rest, the elevator scends,…

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Q: (c) As the cart 1 moves from x to xo, is the magnitude of the acceleration of the cart increasing,…

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Q: a) What would be the speed of the combination after the collision? b) How much did the spring…

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Q: A rope hangs down from a high tree branch at the edge of a river. Josh, who has mass 65 kg, trots at…

A: Given values, mass of josh, m =65 Kg Length of rope, L =7.2 m velocity of josh, v =2.5 m/s

Q: A car is traveling along at 20 m/s when it suddenly slams on its brakes. If the mass of the car is…

A: It is given that, u=20 m/sm=1000 kgF=2000 N

Q: A bungee jumper falls for 1.3 s before the bungee cord begins to stretch. Until the jumper has…

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Q: While a person is walking, his arms swing through approximately a 45 ∘ angle in 0.60 s. As a…

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Q: A 50 gram mass hangs from a spring.  a. Draw and label the forces hanging from the mass in a free…

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Q: A 73-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends,…

A:

Q: a 1.12-m string pendulum has a bob of mass 0.200 kg. a) What is the magnitude of the tension in the…

A: Given data:  Mass, m = 0.200 kg   Length, l = 1.12 m

Q: Dana has a sports medal suspended by a long ribbon from her rearview mirror. As she accelerates onto…

A: a. When Dana accelerates the medal experience a pseudo force, the magnitude of this force is equal…

Q: A 710-kg car encounters a hump that has a circular shape with smooth transitions at either end. (a)…

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Q: 4) How long does it take the block to return to equilibrium for the first time? S Submit 5) What is…

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Q: 36. A truck is moving with S constant acceleration a up a hil that makes an angle with the…

A: The free body diagram for the truck moving uphill is as follows

Q: Assume the pulley and surfaces are frictionless, and the cord is massless and does not stretch. a)…

A: The Free body  diagram will be given as: Since m2=6.3 Kg is heavier therefore m2will slide down and…

Q: A 350-g mass is attached to a spring whose spring constant is 64 N/m. Its maximum acceleration is…

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Q: 32. A bungee jumper falls for 1.3 s before the bungee cord begins to stretch. Until the jumper has…

A:

Q: A 0.420-kg pendulum bob passes through the lowest part of its path at a speed of 3.21 m/s. (a) What…

A: Given Information:- Mass of the bob is m=0.420 kg Speed of the bob at the lowest point is v=3.21 m/s…

Q: A 72.0-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends,…

A: Mass, m = 72 kgInitial velocity, u = 0 m/sMaximum speed, vmax = 1.2 m/sTime to reach vmax, t1 = 0.8…

Q: (b) What is the maximum speed? I have attached the file thanks.

A: Given Mass of spring = 1.7 kg Spring constant = k = 1100 N/m Compression in spring = 2.0 cm = 0.02 m…

Q: a 72 kg man stands on a spring scale in an elevator starting from rest the elevator ascends,…

A: Given: Mass of man = 72 kg Elevator speed = 1.2 m/s time = 0.800 sec In negative y direction: time…

Q: 3. A motion detector is used to measure the horizontal distance between a person and a child on a…

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

Q: (a) Determine the horizontal and vertical components of the force exerted by the string on the…

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Q: Problem 2: A firefighter, whose mass (including clothing and equipment) is m =81 kg, hears the alarm…

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Q: Situation 01. A 60-kg block is at rest when an upward force parallel to the 15 surface is applied.…

A: Given Information:- Mass of the block is m=60 kg Angle of inclination of the surface is θ=15°…

Q: A physics student wants to build a spring gun that when aimed horizontally will give a 20-g ball an…

A: mass of ball ( m ) = 20 g or m = 0.02 kg acceleration ( g ) = 9.8 m/s2 compression in spring ( x ) =…

Q: Consider a 70.0-kg man standing on a spring scale in an elevator. Starting from rest, the elevator…

A: Given: Mass of the man = 70 Kg maximum speed achieved = 1.60 m/s time taken = 0.550 s Next time…

Q: A 0.4 kg mass, attached to the end of a 0.75 m string, is whirled around in a circular vertical…

A: Given data: Mass, m=0.4 kg Length of the string, r=0.75 m Maximum tension in the string, T=20 N (a)…

Q: a. To lift heavy bricks from the ground to a rooftop, the bricks are placed in a container that is…

A: constant speed (v) = 3.5 kmhrangular velocity (ω) = 490 rev/min

Q: A 75.0 kg man stands on a platform scale in an elevator. Starting from rest, the elevator ascends,…

A: Given data: Mass of person, m=75 kg Maximum speed, v=1.20 m/s Initial time, t1=1.00 s Time when the…

Q: The center of the pulley is being lifted vertically with an acceleration of 3 m/s at the instant it…

A:

Q: Consider a 79.0-kg man standing on a spring scale in an elevator. Starting from rest, the elevator…

A: a. the scale register before the elevator starts to move is  W=mg=79 kg9.8 m/s2=774.2 N

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.