A 800 kg car is traveling down a highway at 13.0 m/s when the driver notices a turtle in the middle of the road. Not wanting to strike the turtle, the driver applies her brakes, and her car skids to a stop in 18.0 m. To the nearest newton, what net force must act on the car?

Q: A 3.00 kg box is moving to the right with speed 8.00 m/s on a horizontal, frictionless surface. At t…

A: Let us assume the box is initially moving with a velocity u, when the force is applied then the box…

Q: A 80.0-kg skier starts down a 100-m high, 15.0° slope on regular skis. The coefficients of friction…

A:

Q: A 2 kg particle moves along an x axis, being propelled by a variable force directed along that axis.…

A: The mass of the particle, m = 2 kg The position vector is x=2 m+ 3 m/st+ct2-4 m/s3t3

Q: A Force of x2 + 2 Newtons is pulling a 6 kg block at an angle of 24 degrees. The coefficient of…

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Q: You are riding in an elevator on the way up to your apartment. The elevator is accelerating upward…

A: Given: Upward acceleration of elevator is 1.2 m/s2 Mass is 30 kg Kinetic friction coefficient is…

Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: Three forces act on a particle that moves with unchanging velocity (2.4 m/s )i + (-6.5 m/s )j. Two…

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Q: A 67.3 kg person is standing inside an elevator. The elevator is traveling from the 1st floor to the…

A: Consider the person’s mass be m, its weight be w, the speed of the elevator be u, the normal…

Q: What is the magnitude of the average drag force ?drag exerted on the car?

A: work done by non conservative forces = change in total energy work done by drag force = total final…

Q: Starting from rest, a 28.0 kg28.0 kg child rides a 8.75 kg8.75 kg sled down a frictionless ski…

A: Given  Mass of the child mc=28.0kg Mass of the sled ms=8.75kg Total mass M=mc+ms M=28.0+8.75…

Q: The 42-kg crate is stationary when the force Pis applied. Determine the resulting acceleration of…

A: Given data: The mass of crate is m=42 kg. The angle of ramp is θ=17°. The coefficient of static and…

Q: 3. Multiple-object systems with friction: Two boxes are connected by a weightless cord running over…

A: Given       Mass of A MA=8.0kg      initially of rest     coefficient of kinetic…

Q: A unicorn running on a beach at 7 m/s changes speed at a constant rate of 3.6 m/s2 over a period of…

A:

Q: slides? 1. 4.68 m/s^2 2 1.23 m/s^2 3 6.08 m/s^2 4 1.76 m/s^2

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Q: A driver drives his 1225.0-kg vehicle heading north and then turns east at an intersection. It…

A:

Q: "A 10.0 kg block initially at rest is pulled to the right along a horizontal, frictionless surface…

A: Acceleration a = F/m

Q: A person traveling in a 2,000 kg car at a constant speed of 40.0 m/s applies the brakes, causing a…

A: Given:Mass of the car = 2,000 kgInitial speed of the car = 40 m/sFinal speed of the car = 0Force…

Q: An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An…

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Q: Problem 3: While sliding a couch across a floor, Hannah and Andrea exert forces FH and FA on the…

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Q: Ms. Peet is driving along at 9 m/s when she needs to slow down as she approaches a red light. She…

A: Given, Initial velocity u=9 m/s Deceleration, a=-1.5ms2 he decelerates for time, t=6 s After the…

Q: Question ideal A small block, of 3.2 kg, is attoched to an mass constant 5.5 N/m ,and is doing…

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Q: ength of the barrel, and it exits the barrel with a speed of 730 m/s. Assuming that the acceleration…

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Q: Manny Pacquiao's automobile is about to come closer to a barrier at a speed of 25 m/s along a level…

A:

Q: In a performance test, each of two cars takes 8.4 s to accelerate from rest to 28 m/s. Car A has a…

A: Given Mass of car A is MA=1415 kg Mass if car B is MB=1856 kg Initial velocity of both car vi =0 m/s…

Q: A 1540-kg car is traveling with a speed of 12.4 m/s. What is the magnitude of the horizontal net…

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Q: A 5-kg object can move along the x axis. It is subjected to a force F in the positive x direction; a…

A: Given datam=5kgTo find-dv=?

Q: A. Draw a free-body diagram for the kid including all forces acting on them. B. Draw a free body…

A: Given: The mass of the kid is m=12 kg. The mass of the sled is M=3 kg. The angle of the slope is…

Q: *11 A2.0 kg particie moves along an x axis, being propelled by a variable force directed along that…

A:

Q: A 821-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

A: Given: The mass of the car is 821 kg. The initial speed of the car is 0 m/s. The final speed of the…

Q: A 57 kg skier is going down a mountain side, during one particularly steep region their velocity can…

A: Net force =( mass ) (acceleration)  acceleration = time derivative of the velocity

Q: A 1350-kgkg car pulls a 330-kgkg trailer. The car exerts a horizontal force of 3.6 ×× 103 NN against…

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Q: An astronaut named Johnny is driving to their rocket when they suddenly need to break. The car…

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Q: Assume the resistive force acting on a skater is given by F=-0.14*M*v2, where M is the skater’s mass…

A: Given Force (F)                 = -0.14 M v2 Initial velocity (v0) = 3.4 m/s   ( at t=0 ) Time (t)…

Q: A 8.0 x 104 kg spaceship is at rest in deep space. Its thrusters provide a force of 1200 kN. The…

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Q: An airplane slows to a stop as it moves along the runway.  Its mass is 3.50 x 105 kg, its speed is…

A:

Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A: Given Data : The mass of the crate is given as m = 27.1 Kg. The force applied to the crate is given…

Q: Three blocks (as shown in the figure) are released from rest and they start to accelerate with a…

A: Step 1: here we have derived the equation of motion of the masses Step 2: here we have calculated…

Q: A car is moving along a frictionless surface with a speed of 2 m/s to the left. You and your friend…

A:

Q: school physics. Formula: 1/2 mv2 + Fd cos theta = 1/2      A 1600 kg car is moving along a level…

A: Given  Mass m = 1600 kg  Initial velocity u = 35 m /s distance travelled s = 60 m  Force F = -800 N

Q: ound.   You are pushing up the ramp with a force of 10N.  Starting from rest, the box uniformly…

A:

Q: A flea jumps by exerting a force of 1.32 × 10-5 N straight down on the ground. A breeze blowing on…

A: Given Force exerted by the flea on the ground is Fflea=1.32×10-5 N Force due to the breeze parallel…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: