Particle moves form extreme position to mean positions, its (a) Kinetic energy decrease, potential energy decreases (b) Kinetic energy decrease, potential increases tod g nsupe (c) Both remains constant (d) Potential energy becomes zero and kinetic energy remains constant

Q: How much work is done in lifting a 100-kg load of bricks to a height of 30 m on a building under…

A: Given that-Mass, m=100 kgHeight, h=30 mWe know that-Acceleration due to gravity, g=9.8 m/s2

Q: In the figure, the rock weighs 130 lb and is lifted 1 ft by the lever. F Fulcrum 3F 3d (a) How much…

A: Given data: a)Force F=130lb    Distance d=1 ft b) Distance d=3 ft

Q: Provide given, unknown, FBD and complete solution. This is Conservation of Energy topic. A 200-lb…

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Q: A force (2î-45)N moves an object from the pointP (1, 3) m to the point Q (3, 8) m. The work (in J)…

A: Force, F = (2i-4j) The position vector,  P = (1i+3j) and Q=(3i+8j)

Q: What are the kinetic, potential, and total mechanical energies at points A, B, and C 25.0 m ¡C 3.00…

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Q: While pedaling a bicycle, a particular cyclist exerts an 80N force against the pedal. This  force is…

A: Given:- The force exerted by the cyclist against the pedal F = 80 N  The diameter of the circle…

Q: A block of mass m = 6.30 kg is released from rest from point O and slides on the frictionless track…

A: Given: The mass of the object is 6.3 kg. The height of point A is 6.2 m. The height of point B is…

Q: As shown in the figure below, a box of mass m = 57.0 kg (initially at rest) is pushed a distance d =…

A: (a) Work done by the applied force is WA=FAdcosθ=216 N98.0 mcos30°=18330 J (b) Work done by the…

Q: Someone drops a 56 g pebble ott of a docked cruise ship, 73.0 m trom the water line. A person on a…

A:

Q: A boat travels 200 m due NE, while the wind exerts a force of 450N toward West. How much work does…

A: Given information: The distance traveled by the boat in NE direction (d) = 200 m The magnitude and…

Q: A box (5kg) slides 1m down a 30° incline from rest. a) how much work is done by gravity? b) find the…

A: a) work done by gravity is equal to  Wg=mgdsinθ=5×9.81×1×sin30=24.52J b) magnitude of friction…

Q: The first figure gives spring force F, versus position x for the spring-block arrangement of the…

A: given         spring force Fx versus position x for the spring–block arrangement .         Fs = 180…

Q: A 400 N box is moved at constant velocity across an 8 m horizontal surface. What is the net work…

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Q: Consider a 55kg box being pushed with a 200N horizontal force acros The box accelerates at 2m/sec.…

A: Givenm=55 kgF=200 Nd=10 ma=2 m/s2

Q: 3. A certain force applied on an object is depicted below. (a) What is the work done by the force…

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Q: Q1/Given the two-dimensional potential energy function V(r) = vo -k8³e=r/8? where r ix + jy and V0,…

A:

Q: An object that has gravitational potential energy must be which of the following? (A) moving B…

A: Option (c) is correct. Explanation - Since we know that P = mgh  So, an object that has…

Q: Q. 21: To push a 32 kg crate across a floor a worker applies a force of 190 N directed at the angle…

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Q: (a) The roof of a large arena, with a weight of 380 kN, is lifted by 19 cm so that it can be…

A:

Q: 17) Under the influence of a fore, an object of mass 4 kg accelerates from 3 m/s to 6 m/s in 8…

A:

Q: Two identical golf carts move at different speeds. The faster cart has twice the speed and therefore…

A: Kinetic energy is the energy possess by an object due to its motion. K = (1/2)mv2  K is proportional…

Q: Bimby Aquino is in the garden and cutting the grass. He uses the machine that slashes grass with a…

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Q: How much work is done? when 50N of force move a box through a distance?

A: Given, Force = 50 N

Q: If the total work done on an object is positive, O none of the above O its kinetic energy will…

A: We know that, Work done(W) = change of K.E                           = (K.E)f - (K.E)i

Q: 20 N is needed to slide a box across a room to the right at a constant speed: a) How many Newtons…

A: Let us consider the forces come into picture in the above case,                                 i.…

Q: e.g.A small ball tied on a thin line starts to move SLOWLY (balance at each point) under a…

A: A small ball , is tied on a thin line .  It starts to move until an angle , ∅ .

Q: A mass is launched with speed Vo up a ramp that is an angle of e with the horizontal. There is a…

A: Using conservation of energy during the upward motion…

Q: 9) A particle moves along the trajectory shown below under the influence of the given force.…

A: Given: The equation of the particle path is y=ax2-bx Where a and b values are given by a = 3 m-1 b =…

Q: DIRECTI 1. A force of 5i +j+2k N displaced a body from a position of i+ j+ k m to 2i + 4j+ 6k m. How…

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Q: Ffr = 20 N Fapp 200N %D

A: Given, Fapp=200N Ff=20N The net force is in the forward direction (towards Right)=200-20 Net…

Q: 49. The work done by a force (-2i + 5j) N which moves a particle from a point A to another point B,…

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Q: (a) At a certain instant, a particle-like object is acted on by a force F = (4.20 N )î – (1.90 N )ŷ…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Determine the work done against gravity on a 1.0 kg book that is lifted a height of 2.0 m.

A: Given value--- mass  = 1 kg. height = 2 m. We have to find--- work done ?

Q: e.g. A particle (mass 2kg) start to move from static state along x direction under the force F=12ti.…

A: See below

Q: A block slides 42 m down a ramp that makes an angle of 60° with the ground. Determine the mass of…

A: We have to use the formula W= F * s for this problem

Q: An object is subjected to a friction force with magnitude 76 N which acts againat the objects…

A:

Q: 1) A 120kg crate is being lifted from ground level to a height of 9m in a time of 12 seconds.…

A: (a) The gravitational potential energy is, U=mghU=120 kg9.80 m/s29 mU=10584 J   (b) According to…

Q: A roller coaster starts from rest at point A. The mass of the cart with riders is 900 kg. The motor…

A: We know that the potential energy is given as  P.E = mgh  where m is the mass.  g is the…