(Exercise. Derivation
Q: Take a boat with a mass of 1.5 kg and lift it to a height of 2m. Compute the amount of work done.
A: Given:Mass,m=1.5 kgHeight,h=2mGravitational acceleration,g=9.81 m/s2Now,Work done,wW=Fdcosθ…
Q: A force of 15N acts on a body of mass 2kg. Calculate the acceleration produced.
A: Given data: Force (F) = 15 N Mass (m) = 2 kg Required: Acceleration (a)
Q: A weight lifter raises a 963 N weight a vertical distance of 1.87 m. Compute the work done by the…
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Q: The Lamborghini Huracan has an initial acceleration of 0.80g. It’s mass, with a driver, is 1510kg.…
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Q: A transport truck driving at a constant speed of 84.6 km/hr on a flat stretch of highway must…
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Q: pump is required to raise 600 litres of fresh water a vertical distance of 120m. If the efficiency…
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Q: which is more tiring, running or walking in the stairs? explain
A: Given : Which is more tiring running or walking in the stairs ?
Q: Calculate its mechanical advantage F
A: Given data; Length =4 m=400 cmFulcrum is situated at a distance=60 cmCalculate its mechanical…
Q: A person with a weight of 590N is hanging on the end of a rope swing. The other end of the rope…
A: Given data: Weight of the person (W) = 590 N Other end of the rope is attached to the tree Required:…
Q: How much work is done lifting a 20 pound object from the ground to the top of a 50 foot building if…
A: Weight = 20 pounds Weight per foot = 2.5 lb/ft Height = 50 ft Workdone, W = ?
Q: A crate of mass 95.6 kg is pushed along a floor with a force of 30 N for a distance of 18.5 m.…
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Q: What is its mechanical
A: Given data; machine effort of 10 kgfit is used this effirt to lift the load is; load=100 kgfFind…
Q: A force of 1000N is applied to a 1200Kg car. If the coefficient of rolling friction is 0.04, what is…
A: Here,
Q: A 2-kg block of wood is pushed by horizontal force of 10 N to a distance of 3 m. The work done…
A: Given: Mass of block m= 2 Kg Force applied F= 10N Distance d= 3m
Q: A boy uses a string to swing a 2 kg stone around his head. If the string is 1.5m, and can bear a…
A: Given Tension = 2224N Radius of the swing = length = 1.5 m Mass of the object = m = 2 kg
Q: Pushed a 10kg box of rocks across the floor. The coefficient of friction between the box and the…
A: It is given that, m=10 kgμ=0.2
Q: For a 1st class lever, the force arm is 2.2 m and the resistance arm is 5.4 m. If the the force arm…
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Q: The rate of doing work is known as
A: In physics, the rate of doing work is known as Power. It is equivalent to an amount of energy…
Q: A transport truck driving at a constant speed of 83.3 km/hr on a flat stretch of highway must…
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Q: A trailer of mass 20 ton is given a uniform acceleration while travelling on a level road. The…
A: Given data: Mass of the trailer, m=20 ton = 20×907.185 kg = 18143.7 kg Initial velocity, u=16 kph =…
Q: The reservoir is filled to a depth of 5 ft, and the water is to be pumped to thesame level as the…
A: No work is done if the water is to be pumped to the same level as the top. Now,Work done(W)…
Q: the effort required to lift a load of 40 N ?
A: Given; Length,l= 6m effort arm= 3m What is the effort required to lift a LOAD ? load=40N
Q: A transport truck driving at a constant speed of 87 km/hr on a flat stretch of highway must produce…
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Q: How much work is done lifting a 35 pound object from the ground to the top of a 30 foot building if…
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Q: A 66 kg man pushes off from the 108kg block on ice and slides away at a speed of 4 m/s What is the…
A: Given: Mass of a man (m) = 66 kg. Mass of a block (M) = 108 kg. Speed of man (v) = 4 m/s.
Q: What is the ΔKE if a grocery cart is pushed 12 m with a force of 15N?
A: Given Force on grocery cart F = 15 N Distance to which grocery cart is pushed d = 12 m To find…
Q: A book is pushed with a force of 71N which produced a work done of 24J. How far did the book travel?
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Q: A force of 50 N streches a certain spring by 20 cm. The spring constant is
A: Given data : Force that caused the stretching of spring, F = 50 N…
Q: A 5 kg block requires 6 m to slide to a stop.If the force of friction was 21 N, what was the initial…
A: In this question the block experiences a frictional force in the opposite direction of the motion,…
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