A mechanic pushes a 2.10 ✕ 103-kg car from rest to a speed of v, doing 5,070 J of work in the process. During this time, the car moves 26.0 m. Neglecting friction between car and road, find v and the horizontal force exerted on the car. (a) the speed v  m/s (b) the horizontal force exerted on the car (Enter the magnitude.)  N

Q: A block of ice with mass 2.00 kg slides 0.74 m down an inclined plane that slopes downward at an…

A: mass of ice (m) = 2 kg distance moved (d) = 0.74 m θ = 34oinitial velocity (u) = 0 m/s

Q: A force of F = 350 N is applied to the end at B. Determine the speed of the 15-kg block when it has…

A: mass= 15 kg Force applied= 350 N

Q: The parachute on a race car of weight 8,810 N opens at the end of a quarter-mile run when the car is…

A: The acceleration of the car can be calculated as follows,

Q: A new type of force was discovered by physicists with the following expression: where alpha &…

A:

Q: Q2. An 80 kg dog is lying on the floor at rest. The coefficient of kinetic friction between the dog…

A: We are given force by person. We first find the work done by the person. This is done by finding net…

Q: Escaping from a tomb raid gone wrong, Lara Croft (m = 66.0 kg) swings across an alligator-infested…

A: Given: Mass of the person is m=66 kg Length of vine used is l=9.05 m Speed at the bottom of swing is…

Q: ce on a 1700-kg coaster train? Part B How much work is done by friction during the time the…

A:

Q: A force F = (cx - 3.00x2)î acts on a particle as the particle moves along an x axis, with F in…

A: Work-energy theorem states that the work done by the sum of all forces acting on a particle equals…

Q: A daredevil on a motorcycle leaves the end of a ramp with a speed of 38.9 m/s as in the figure…

A: KEBottom-KEtop=PE0.5mvbottom2-0.5mvtop2=mghh=0.vbottom2-0.5vtop2g

Q: A 9.5 kg block is forced against a horizontal spring, compressing the spring 0.3 m. When released,…

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Q: The product of the displacement and the component of the force in the direction of the displacement…

A:

Q: A force F → = ( c x − 3.00 x 2 ) i ^  acts on a particle as the particle moves along an x axis, with…

A: W=∫0 m2.8 mFxdx=∫0 m2.8 mcx-3.0x2dx=cx22-x32.80=3.92c-21.95

Q: A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the…

A: GIVEN:               MassM = 66 kg                Time ( t ) = 0.040 s               Force exerted…

Q: Problem 19 Part (a)  What is the speed of the crate, in meters per second, just after it leaves the…

A: Step 1: Draw the FBD and Compute the acceleration of the block on the 1st scenario (inclined plane)…

Q: I X

A: Given data- The expression for the Newton's law of universal gravitation is given by F=GMmr2 where M…

Q: A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun…

A: Given data:  Mass of bullet (m) = 0.0200 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 550…

Q: While a roofer is working on a roof that slants at 41.0° above the horizontal, he accidentally…

A: Given:Angle of slant of the roof: θ=41°The weight of the object: Fw=91 NThe Kinetic friction force:…

Q: y You need to load a 75 kg box onto a truck. You consider three different paths. A - Pick the box…

A:

Q: A mechanic pushes a 3850 kg car from rest to a speed of v, doing 5083 J of work in the process. Find…

A:

Q: The relationship between work done by a force resultant and change in particle kinetic energy can be…

A:

Q: How far do you skid before stopping if the kinetic friction force between your tires and the road is…

A:

Q: A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 30 N.…

A: Given data: mass m = 17 kg force F = 30 N speed v = 1.9 m/s displacement d = 8.6 m

Q: A 0.23 kg apple falls from a tree to the ground, 4.0 m below. Ignore air resistance. Take ground…

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Q: A along in positive direction with a constant speed vo. At t=0, the mass passes through the origin…

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Q: A 80 kg diver steps off a 13 m tower and drops from rest straight down into the water. If he comes…

A: The initial position of the diver, hi=13 m The final position of the diver, hf=-4.6 m The mass of…

Q: Escaping from a tomb raid gone wrong, Lara Croft (m = 66.0 kg) swings across an alligator-infested…

A: We know that  m = 66 kgv = 6.3 m/s at the bottom of the swing

Q: A block of mass m is pushed at constant speed over the horizontal ground. If the kinetic friction…

A: Given data, Mass of the block = m displacement = s coefficient of kinetic friction=μ

Q: A net force along the x-axis that has x-component F₂ = -12.0 N+ (0.300 N/m²)a² is applied to a 3.60…

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Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal…

A:

Q: Mass m is on a rough surface of mass M (µ coefficient of friction). M is on a smooth surface and…

A: Given information:L The initial velocity given to the block of mass "m" = V0 The coefficient of…

Q: The 40 kg crate is traveling to the right with an initial v0=1.2 m/s, when a person begins to pull…

A: Given, mass of block = 40 kg initial velocity = 1.2 m/s

Q: A 2.33-kg block initially at rest at the top of a 3.37-m incline with a slope of 44.5° begins to…

A:

Q: block of ice with mass 2.00 kg slides 0.810 m down an inclined plane that slopes downward at an…

A: mass of block of ice (m) = 2 kg distance (d) = 0.810 m Angle of incline (θ) = 31o

Q: A 42.0-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of…

A: Given Data: The mass of a crate is, m=42 kg The constant horizontal force is, Fp=225 N The distance…

Q: In the figure, a 4.2 kg block slides along a track from one level to a higher level after passing…

A:

Q: A box with mass 5.00 kg starts sliding down a ramp (1.00 m long) which is inclined at an angle…

A:

Q: P1.29. Determine the work done in moving an object along a vector a 5i - 3j + 2k if the applied…

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Q: A 2.10 kg block is pulled up force on the block from th- Number i

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Q: Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.00x10° N, one at an…

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Q: A box of mass m = 6.0 kg (moving in the positive x-direction) has a velocity of 2 m/s at t = 0, and…

A:

Q: A 1500 kg car skids to a halt on a wet road where 4 = 0.51. You may want to review (Pages 141 - 145)…

A:

Q: The tomato is dropped. What is the velocity, v, of the tomato when it hits the ground? Assume 92.7 %…

A: Given: Work done=21.5 J 92.7% of work is transferred into Kinetic Energy

Q: A force F = (cx - (3.00 N/m²) x²)i acts on a particle as the particle moves along an x axis, with…

A:

Q: Ten days after it was launched toward Mars in December 1998, the Mars Climate Orbiter spacecraft…

A: mass of orbiter (m) = 629 kg distance (d) = 2.89×106 km speed (u) = 1.20×104 kmhr= 12000 ×518 ms=…

Q: Escaping from a tomb raid gone wrong, Lara Croft (m= 60.0 kg) swings across an alligator-infested…

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.