2000 kg car with speed 12.0 m/s hits a tree. The tree does not move or break and the front of the car is smashed inward 50.0 cm. Ignore friction. (a) Determine the work done on the car by the tree. (b) Determine the amount of force involved

Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=3 m/s at a starting point.…

A: Given: mass of an object, m = 20 kginitial speed, vi = 3 m/sfinal kinetic energy, KEf = 122 J

Q: How does conservation of energy explain why something that is falling should speed up? O It loses…

A:

Q: A single force acts on a 3.0 kg particle-like object whose position is given by x = 3.0t − 4.0t2 +…

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Q: A mechanic pushes a 2.50 × 10°-kg car from rest to a speed of v doing 5.00 × 10³ J of work in the…

A: Given data:  Mass (m) = 2.50×103 kg Initial velocity (u) = 0 m/s Final velocity = v Displacement (d)…

Q: 2. Which situation demonstrates a positive work done? Group of answer choices A basket being lifted.…

A: Case 1 Work is done by man against gravity When basket being lifting Case 2 No work done by boy…

Q: A7.80 g bullet has a speed of 580 m/s when it hits a target, causing the target to move 6.10 cm in…

A: It is given that m=7.8 g=7.8×10-3 kgu=580 m/sx=6.10 cm=0.0610 m

Q: An accelerating object of mass m-18 kg is fired with an initial speed v-7 m/s at a starting point.…

A: Given: The mass of the object is 18 kg. The initial velocity of the object is 7 m/s. The final…

Q: 1. Two tugboats pull a disabled tanker with each tug exerting a force of 1.80 x 10 N, one with 14…

A:

Q: A car needs to generate 75.0 hp in order to maintain a constant velocity of 27.3 m/s on a flat road.…

A: Given information: The velocity of the car (v) = 27.3 m/s The power of the car (P) = 75 hp We know…

Q: A baseball has a mass of 0.145 kg. In batting practice a batter hits a ball that is sitting at rest…

A: Part-I: Given: The mass of the baseball is 0.145 kg. The initial speed of the ball is 0 m/s. The…

Q: A7.9 kg object is moving in the positivex direction. When it passes through x- 0, a constant force…

A: Given Data The mass of the object is:m=7.9 kg The kinetic energy is:ko=24 J The object moves the…

Q: This is high school physics. Topic: Energy Conservation An unknown force is applied to a 8.0 kg…

A: Given that, Mass (m)= 8 kg Displacement (s)= 15 m Initial speed (u)= 10 m/s Final speed (v)= 20 m/s…

Q: A projectile of mass m is fired at an angle 0 giving it an initial speed of Vo. The projectile…

A:

Q: Same set-up for the conservation of energy was performed. The 5-g marble covered a horizontal…

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Q: angle between the force and direction of motion c

A:

Q: A 350 kg sofa slides 2.5 m down a 30° incline and who is pushing back on it parallel to the incline…

A: Given:- The mass of the sofa m = 350 kg  The sliding length L = 2.5 m  The angle of the incline is…

Q: A force F directed upwards is applied on an object resting on a flat surface. The object then moved…

A: Work done by a force is given as W =F→.S→W =FScosθWhere θ is the angle between force vector and…

Q: The following graph of Fig.A2 shows the motion of a horse in pulling a cart on a farm. The amount of…

A: Given above a graph of force and displacement we have to find the work done

Q: -The force F = (3i - j) N acts on a particle, causing a displacement of Ar = (3i + 2j) m. Find the…

A: Work done on the particle by this force W=F→·d→=3i-j·3i+2j=3i·3i+-j·2j=9-2 J=7 J

Q: During terrible weather at a ski-flying world championship, a ski jumper tried to adjust for bad…

A: Mass of ski jumper, m=73kg Drop in height, h=45m

Q: A 390 kgkg piano slides 2.8 mm down a 23 ∘∘ incline and is kept from accelerating by a man who is…

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Q: A baseball pitcher sends a fastball toward the batter with a speed of 40 m/s. The batter swings and…

A: Given:-   The mass of the ball is m = 145 g  The speed of the ball is v = 40 m/s  The distance that…

Q: A force F = 5.Oî + 16.5 ↑ - 3.7Rk N is acting on a body causes a displacement d = -49.2 - 30.9k m.…

A: Given: The force is F→=5.0i^+16.5j^-3.7k^ N. The displacement is d→=-49.2j^-30.9k^ m.

Q: 2. A 350 kg sofa slides 2.5m down a 30° incline and is kept from accelerating by a woman who is…

A: Given data

Q: An 8.0 kg robot starts from rest and speeds up to 3.0 m/s in 3.0 s. How much work is done by the…

A: Given data: Mass (m) = 8.0 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 3.0 m/s Time (t) =…

Q: 5. Three forces applied to a trunk moves leftward by 3.00 m over a frictionless floor. The force…

A:

Q: 4. Aforce (F = -6i + 2j – 5 F = -6ĩ + 2j – 5 k k ) N acts on a particle that %3D undergoes a…

A: (a) The work done by the force is given as, Substitute all the known values in the above equation.

Q: . For one particular event during the worlds strongest man competition, Hafpor Julius Bjórnsson, who…

A:

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

A: Given, Force  F = 5i + j + 2k N  Displacement  d = r2 - r1   where r1 and r2 are position vectors d…

Q: Construct Your Own Problem - Consider humans generating electricity by pedaling a device similar to…

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Q: 1. A particle was subjected to a force Fx that varies with position as described by the Fx vs. x…

A: Simple but intersting problem of force and work. Please have a good look

Q: 4. A large water tank is filled by pumping water into it from a reservoir below, using electric…

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Q: Your brand new 75.0-kg refrigerator falls out of the back of your truck while you are traveling up a…

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Q: A mass of 47 kg is moving horizontally as a force of 190 N, directed at 25° below the horizontal, is…

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Q: Two cars are moving. The first car has twice the mass of the second car but only half as much…

A: The kinetic energy of a body moving at a certain speed is given by KE = 12mv2, where m = mass of the…

Q: 2) Consider the system shown in the figure. Masses of the pulley and rope are neglected and the…

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Q: A baseball is thrown straight up with initial speed ?0. If air resistance cannot be ignored, when…

A: Given that:- A baseball is thrown vertically upward with speed Vo.

Q: a) determine the force exerted on the piano by the man.  b) determine the work exerted on the piano…

A: The free-body diagram of the scenario is given as,   Given, Mass, m=390 kg, distance it slides, d=…

Q: 1. A 0.66-kg object with an initial velocity of 3.30 m/s in the positive x-direction is acted on by…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: An advertisement claims that a(n) 1600 kg car can accelerate from rest to 26 m/s in 8.4 s. Given:…

A: Given Mass of the car is given as m=1600 kg Initial speed of the car is vi=0 Final speed of the car…

Q: 2. A person pushes a 2500 kg car from rest to a speed of v, doing 5000 J of work in the process. If…

A: The mass of the car is given as m = 2.5 x 103 kg.The work done by the mechanic is given as W = 5000…