A 1500-kg truck and a 1200-kg car are parked with their rear bumpers nearly touching each other in a level parking lot. Both vehicles have their brakes off so that they are free to roll. A man sitting on the rear bumper of the truck exerts a constant horizontal force on the rear bumper of the car with his feet, and the car accelerates at 1.2 m/s2. Ignore any friction between the tires and the parking lot surface. The direction of the unit vector ı^ is the direction of motion of the car. Part A What is the acceleration of the center of mass of the car-truck system?

Q: Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He…

A:

Q: Traveling at a speed of 12.1 m/s, the driver of an automobile suddenly locks the wheels by slamming…

A:

Q: Review Conceptual Example 16 as background for this problem. The water skier there has a mass of…

A: See below

Q: Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He…

A: Given that,Fp=8.7 NmA=10.6 kgmB=7 kgμk=0.02

Q: The figure shows a container of mass m₁ = 1.9 kg connected to a block of mass m₂ by a cord looped…

A:

Q: The figure shows a container of mass m1 = 4.9 kg connected to a block of mass m2 by a cord looped…

A:

Q: Seat belts and air bags save lives by reducing the forces exerted on the driver and passengers in an…

A: We are given the stopping distance in each case. That means that stopping distance is given when…

Q: Traveling at a speed of 12.2 m/s, the driver of an automobile suddenly locks the wheels by slamming…

A: An automobile puts on brakes and it is asked to find the speed of the automobile after 1.41 s.

Q: Traveling at a speed of 14.2 m/s, the driver of an automobile suddenly locks the wheels by slamming…

A: Given that: u=14.2 m/sv=?μ=0.59t=1.14 secg=9.8 m/s2

Q: Two skydivers are holding on to each other while falling straight down at a common terminal speed of…

A: According to conservation of linear momentum, total momentum of the system is constant before and…

Q: The figure shows a container of mass m₁ = 4.1 kg connected to a block of mass m₂ by a cord looped…

A: Mass m1 = 4.1 Kg Acceleration a= 1.1 m/s2 Part (a) For mass m1, the dragging force is balanced by…

Q: Two skydivers are holding on to each other while falling straight down at a common terminal speed of…

A: The initial velocity of the skydivers is in straight down. Use the conservation of momentum along…

Q: A 39 kg girl and a 7.7 kg sled are on the frictionless ice of a frozen lake, 10 m apart but…

A:

Q: While hauling a log in the back of a flatbed truck, a driver is pulled over by the state police.…

A:

Q: 13. Two constant forces of magnitude F1 and F2 act on a particle of mass 5.00 kg which is at rest at…

A: Given: Mass, m=5kg F1 at 14.5o west to northF2 at 58.3o west of souths=32.4mv=12.2m/s Using 2nd…

Q: The drawing shows a 20.5-kg crate that is initially at rest. Note that the view is one looking down…

A:

Q: A pickup truck is carrying a 10.0 kgkg toolbox, but the tailgate of the truck is missing, so the box…

A: Given Mass of the tool box m = 10.0 kg Coefficient of kinetic friction μs = 0.34 Coefficient of…

Q: Seat belts and air bags save lives by reducing the forces exerted on the driver and passengers in an…

A: Given,

Q: Two carts on a low friction air-track are connected by an unstretched spring. Cart 1 has an inertia…

A:

Q: A block M₁ of mass 10.5 kg sits on top of a larger block M₂ of mass 20.5 kg which sits on a flat…

A:

Q: Seat belts and air bags save lives by reducing the forces exerted on the driver and passengers in an…

A: Given data-  Mass of person m=62 kg  The car speed u=13 m/s  After impact car speed v=0 m/s…

Q: *111. ssm At an airport, luggage is unloaded from a plane into the three cars of a luggage carrier,…

A: There are three car which are accelerated to 0.12 m/s2

Q: The figure shows a container of mass m1 = 1.1 kg connected to a block of mass m2 by a cord looped…

A:

Q: A packing crate with mass 80.0 kg is at rest on a horizontal, frictionless surface. At t = 0 a net…

A:

Q: You are driving your 1450-kg car on a straight highway at 67 mph when a deer jumps out into the…

A: (given) Mass of driving car =1450 kg           Speed of car = 67 mph =67/3600 =0.02 m/s…

Q: VA = 30 m/s A Vg = 20 m/s B

A:

Q: Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He…

A:

Q: a 2.5 kg mass is initially at rest on a horizontal surface. Am applied force acts in the + x…

A:

Q: Seat belts and air bags save lives by reducing the forces exerted on the driver and passengers in an…

A:

Q: A 10.2-kg box is sliding across a horizontal floor. It has an initial speed of 1.25m / s and the…

A: Given    A 10.2-kg box is sliding across a horizontal floor. It has an initial speed of 1.25m / s…

Q: Question 9. Traveling at a speed of 16.1 m/s, the driver of an automobile suddenly locks the wheels…

A: The initial speed is The coefficient of the kinetic friction is The time is t = 1.21 sLet the speed…

Q: Mary applies a force of 71 N to push a box with an acceleration of 0.45 m/s2. When she increases the…

A:

Q: Two blocks of masses M1 = 3.5 kg and M2 = 5.7 kg are at rest on a horizontal surface with a…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A: