At a certain factory, 300 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.20 m/s.  A motor maintains the belt's constant speed.  The coefficient of kinetic friction between the belt and each crate is 0.400.  After a short time, slipping between the belt and the crate ceases, and the crate then moves along with the belt.  For the period of time during which the crate is being brought to rest relative to the belt, calculate: (Use g = 9.8 m/s/s)   a) The kinetic energy supplied to the crate: b)  The magnitude of the kinetic friction acting on the crate:

Q: The short freight train in the figure consists of a locomotive L of mass m₁ = 100 tonnes and two…

A: Given Data: The mass of the locomotive is Ml=100 tones. The mass of the iron-ore wagons is Mw=50…

Q: A frictionless block of mass 0.5 kg slides down a ramp of height 0.2 m and onto a horizontal…

A: The vertical component of the net force acting on the block. given, mass(m)= 0.5 kg height(h)= 0.2 m

Q: A bead with mass 2.20 × 102 kg is moving along a wire in the positive direction of an x axis.…

A: Answer the following question is

Q: This time the magnet has mass 6.08 kg and the force pulling it to the right is 110.3 N. When the…

A:

Q: The figure shows a container of mass m₁ = 4.5 kg connected to a block of mass m₂ by a cord looped…

A:

Q: The figure shows a container of mass m1 = 4.9 kg connected to a block of mass m2 by a cord looped…

A:

Q: The small collar of mass m = 0.55 kg is released from rest at A and slides down the curved rod in…

A: Given m=0.55kg  B=0.76m h=1.25 In the question we using energy balance equation We have to find the…

Q: A 43.0-kg child swings in a swing supported by two chains, each 2.96 m long. The tension in each…

A: a) The radial force Fc is, Fc=mv2r The tension in the chain is T is,…

Q: An object with mass m = 34 kg is pushed with 452 N of force to be moved across a distance of 4.6 m…

A: Given data: The mass is m=34 kg The applied force is F=452 N The displacement is s=4.6 m The…

Q: Consider a block being pulled from rest through a distance 46.03 cm to the right across a tabletop.…

A:

Q: A mass on the end of a string of length L is in clockwise uniform circular motion in the horizontal…

A: Given:Mass = mLength of string = LTangential velocity = v

Q: A chain attached to an object with a mass of 68.0 kg is propelled by a motor to move it up an…

A:

Q: A motorboat and its load weigh 980 kg. Assume that the propeller force is constant and equal to 24…

A:

Q: Problem. An object with mass m₁ = 7 kg moves on a level, frictionless table in a physics lab. It is…

A:

Q: At night while it is dark, a driver inadvertently parks his car on a drawbridge. Some time later,…

A: GivenCoefficient of state friction         μs Coefficient of kinetic friction        μk =0.470.

Q: The Apollo spacecraft took off on July 16, 1969 and made a lunar landing (landing on the Moon) on…

A: Newtons equations of motion are, s=ut+12at2 v=u+at v2-u2=2as Here u, v are the initial and final…

Q: A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew…

A: Mass of stunt performer,(m)=88 kg ------(1) [Given] Length of the vine,(r)=10.5 m ------(2) [Given]…

Q: The figure shows a container of mass m1 = 4.4 kg connected to a block of mass m2 by a cord looped…

A: Given that - Mass of container (m1) Acceleration To Find - Part (a) - We have to determine the…

Q: A ball with a mass of 1 Kg is connected by a strong rope and has length L to a fixed pivot point…

A: mass of ball = 1 kg force exerted by wind (horizontal) = 5 N g = 9.8 m/s2let tension in the rope = T…

Q: A 7 kg block measures 9 cm by 15 cm by 27 cm. When it slides on a 15 cm by 27 cm face, it moves with…

A: The kinetic frictional force is given by, fk=μkN Here,μk  is the coefficient of kinetic friction, N…

Q: A piece of string is hanging from a rod of 5 m as shown below. A 4500 N weight hangs from the…

A: The tension is the force that acts at both extremities of the string. This force helps to elongate…

Q: adventurous archeologist (m = 85.0 kg) tries to cross a river by swinging from a vine. The vine is…

A: Given,  Mass , m = 85.0 kg Length of vine, L = 10.0 m  Speed , V = 8.0 m/s  Breaking strength, f =…

Q: Package 1, with inertia 2kg, is released from rest at a warehouse loading dock and slides down a…

A: Given data: The inertia of package 1 is m1=2 kg. The inertia of package 2 is m2=4 kg. The height of…

Q: Problem 8: A car of mass m = 1020 kg is traveling down a 0 = 12 degree incline. When the car's speed…

A:

Q: An airplane of mass 3.60 x 10° kg experienced problem in all its tyres when it was about to touch…

A: Mass of the airplane, M = 3.60 x 105 kg Displacement of airplane, d = 728 m Coefficient of Kinetic…

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

A:

Q: A 19.08 kg block is slid from a height of 7.62 m down a friction-less incline. It comes to a flat…

A:

Q: A truck is traveling at 11.6 m/s down a hill when the brakes on all four wheels lock. The hill makes…

A: The given data are: u=11.6 m/s=Initial velocityθ=17°=inclination of a hillμ=0.876=coefficient of…

Q: A boy shoves his stuffed toy zebra down a frictionless chute. It starts at a height of 1.49 m above…

A: Given quantities: initial speed of the toy (u) = 1.87 m/s height from which toy starts its motion…

Q: A small block with mass 0.200 kg is released from rest at the top of a frictionless incline. The…

A: Given Data :m1 = 0.2 kgm1 = 0.4 kgdistance travelled by m1 in 0.2seconds is 0.508 metersinitial…

Q: A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from…

A: The mass of the car, m=950 kg   The speed of the block, v=2.05 m/s   The angle of incident, θ=30.5°…

Q: An applied force of 42.3 N directed at an angle of -17.7 degrees with respect to the +x direction…

A: Given: The force applied F = 42.3 N. The inclination of the incline θ = -17.7o. The mass of the…

Q: A steel beam is suspended from two ropes as it is lifted to the top of a building at a constant…

A: Given: θ1=27.1°θ2=25.7° T1=711 N Free Body Diagram:

Q: It is not possible to see very small objects, such as viruses, using an ordinary light microscope.…

A:

Q: An object of mass 3 kg moves towards the negative x axis with a constant speed of 8 m/s and the…

A: Answer              11.466N

Q: A hockey puck with mass 0.166 kg is pushed across the ice with a constant force of 0.89 N. The…

A:

Q: a student is skateboarding down a ramp that is 5.82 m long and inclined at 24.1% with respect to the…

A:

Q: As rock climbers ascend El Capitan over the course of 2 or 3 days, they have to bring all their…

A:

Q: Objects of masses m = 4.0kg and m 9.0 kg are 1 2 connected by a light string that passes over a…

A:

Q: A heavy ball with a weight of 150 N (m = 15.3 kg) is hung from the ceiling of a lecture hall on a…

A: The objective of this question is to find the tension in the rope when the pendulum is at its lowest…

Q: A boat is being towed at the rate of 12 mi/hr. At the instant that the towing line is cast off, a…

A:

Q: 201 cars initial speed. 525 A8. LEEDS0370 A car of mass 200 kg is travelling along a straight…

A:

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.