During a high-speed chase, a 2400-lb sports car traveling at a speed of 100 mi/h just loses contact with the road as it reaches the crest A of a hill. (a) Determine the radius of curvature P of the vertical profile of the road at A. (b) Using the value of P found in part a , determine the force exerted on a 160-lb driver by the seat of his 3100-lb car as the car, traveling at a constant speed of 50 mi/h, passes through A.

Q: A tractor-trailer rig with a 2000-kg tractor, a 4500-kg trailer, and a 3600-kg trailer is traveling…

A: (a) In this case, the tractor-trailer rig will act as a body so the free-body diagram of the body is…

Q: PROBLEM 12.50 C A 55-kg pilot flies a jet trainer in a half vertical loop of 1200-m radius so that…

A: Given data Mass of pilot = 55 kgRadius of vertical loop = 1200 mAt point A, speed = 550 km/hAt point…

Q: The system shown is at rest when a constant 250-N force is applied to block A. Neglecting the masses…

A:

Q: A passenger car being driven on a flat and straight section of a highway at a speed of 105 km/h…

A: When a speeding vehicle reaches a curved section of the road, it experiences centrifugal and…

Q: A light train made up of two cars is traveling at 90 km/h when the brakes are applied to both cars.…

A: Given data: The light train made up of two cars is traveling at V1=90 km/h The mass of the car A is…

Q: system of blocks is pulled by a force P. The string connecting blocks A and B passes over a pulley…

A: The ratio of tensions on the ropes of the pulley is related by the formula given below as- T1T2=eμθ…

Q: In a railroad classification yard, a 75-Mg freight car moving at 1.1 m/s at A encounters a retarder…

A:

Q: The crate/box shown has a square shape, an in-plane size of 10 ft X 10 ft and a uniformly…

A: Given data: -  The weight of the box is W = 300 lb. The value of horizontal force P is P = 40 lb.

Q: A 5-kg bag is gently pushed off the top of a wall and swings in a vertical plane at the end of a…

A: Mass, m=5kg Tension, T=100N

Q: Two wires AC and BC are tied at C to a sphere that revolves at a constant speed v in the horizontal…

A: Given Ball mass = 5 kg Maximum tension on the wire is 60 N To find Maximum velocity allowable for…

Q: The 1.2-lb flyballs of a centrifugal governor revolve at a constant speed v in the horizontal circle…

A: The free-body diagram of the fly ball will be as follows,   The data given is Weight, W = 1.2 lb…

Q: Boxes A and B are at rest on a conveyor belt that is initially at rest. The belt is suddenly started…

A: let the acceleration of block A is aa and acceleration of block B is ab respectively.  assume ab…

Q: A mother and her child are skiing together, and the mother is holding the end of a rope tied to the…

A: From the textbook we get the figure as shown below,

Q: Problem 4. The last segment of the triple jump track-and-field event is the jump, in which the…

A:

Q: PROBLEM 13.9 A spring is used to stop a 60-kg package which is sliding on a horizontal surface. The…

A: As per given question We have to determine a) the coefficient of kinetic friction between the…

Q: As part of an outdoor display, a 5-kg model Cof the earth is attached to wires AC and BC and…

A: Given:TAC = 116N | m = 5kgr = 0.945 mFree body diagram   weight of the model, ωω = mg = 5 x 9.81 =…

Q: Problem (1) A tractor-trailer is traveling at 90 km/h when the driver applies his brakes. Knowing…

A: Speed of the tractor-trailer, v=90km/h=25 m/s Let us consider, N1 is the normal reaction to the…

Q: The van is traveling at 20 km/h when the coupling of the trailer at A fails. If the trailer has a…

A:

Q: A 130-lb wrecking ball B is attached to a 45-ft-long steel cable AB and swings in the vertical arc…

A: The normal force acting on the ball by considering the vertical forces are…

Q: A 2197 lb car starts from rest at point 1 and moves without friction down the track shown. Determine…

A:

Q: People with mobility impairments can gain great health and social benefits from participating in…

A: The maximum velocity of the puck will be obtained just as the puck loses contact with spring (once…

Q: A 400-kg satellite is placed in a circular orbit 6394 km above the surface of the earth. At this…

A: Given data as per the question Mass of the satelite =400 kg  orbital speed = 20 000 km/h…

Q: A car is traveling at 100 km/h along a straight, level road when its brakes

A:

Q: A 3200 lb car traveling with a speed of 60 mph rounds a curve whose radius 484 ft. Find the…

A:

Q: In a railroad classification yard, a 66-Mg freight car moving at 1.1 m /s at A encounters a retarder…

A: Given: The mass of the freight car is 66 mega gram. Velocity of the car at A is 1.1 m/s. Retarding…

Q: 2) A ball with a weight of 0.3N is attached to the end of an elastic thin cord of which unstretched…

A:

Q: A system of blocks is pulled by a force P. The string connecting blocks A and B passes over a pulley…

A:

Q: A 32,000-lb airplane lands on an aircraft carrier and is caught by an arresting cable. The cable is…

A: Using the Pythagorean theorem in the triangle is:

Q: A 40-Mg boxcar A is moving in a railroad switchyard with a velocity of 9 km/h toward cars B and C ,…

A: Given data as per the question weight of boxcar A =40 Mg The velocity of A = 9 km/h Mass of car B =…

Q: A spring AB of constant k is attached to a support at A and to a collar of mass m. The unstretched…

A: The change in the kinetic energy when the collar moves from point B to C: ∆KE=12m(vC2-vB2) here the…

Q: A locomotive exerts a constant force 200,000 lbs on a set of series-connected railroad cars weighing…

A:

Q: A spring scale A and a lever scale B having equal lever arms are fastened to the roof of an…

A:

Q: Prove that a force F(x,y,z) is conservative if, and only if, the following relations are satisfied:

A: Conservative forces are given by Fx=-∂v∂x.........1Fy=-∂v∂y.........2Fz=-∂v∂z.........3now…

Q: 12.40 Four cars are all traveling at a constant speed of 72 km/h along a road as shown. If u = 0.5…

A: Given information: The speed of the cars (v) = 72 km/h = 20 m/s The coefficient of the kinetic…

Q: A single wire ACB passes through a ring at C attached to a sphere that revolves at a constant speed…

A: Draw the free body diagram of the ball: Consider the equilibrium of forces in vertical direction:…

Q: A 10-lb collar is attached to a spring and slides without friction along a fixed rod in a vertical…

A: Mass of the collar; m = W/g  m = 10/32.2 = 0.31056 lb s2/ft Potential energy of the spring for…

Q: Determine the magnitude of the force P  a) knowing that the block are initially at rest and that B…

A:

Q: A crash test is performed between an SUV A and a 2500-lb compact car B. The compact car is…

A: a)The relationship between the force and time is given by,

Q: In a railroad classification yard, a 69-Mg freight car moving at 1.5 m/s at A encounters a retarder…

A:

Q: An elastic cable is to be designed for bungee jumping from a tower 130 ft high. The specifications…

A: (a) Conservation of energy:              V1=100W           T1=0V1=100×600=6×104ft.lbV2=0…

Q: A 54-kg pilot flies a jet trainer in a half vertical loop of 1200-m radius so that the speed of the…

A:

Q: 1. A single wire ACB passes through a ring at C attached to a sphere which revolves at a constant…

A:

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.