3: A dragster accelerates from rest down a street of length d = 400.0 m. In the absence of any friction the dragster has a constant acceleration of a = 28.1 m/s² in the direction of motion, and its mass is m = 1095 kg. Assume the dragster is moving in the positive horizontal direction.

Q: Below is a side-view picture, where a box is brought up to a height at point A and moves a distance…

A: The gravity’s work done on the box can be given by the work-energy theorem as, Here, U represents…

Q: You have your textbook and pen with you while working on this exam. Assume the height of your…

A: Given Data : The height of the desk is given as H = 1m. The mass of the book is given as mb. The…

Q: A crane lifts a 650-kg beam vertically upward 23.0 m and then swings it horizontally a distance of…

A: Given: The mass of the beam is 650 kg. The vertical displacement of the beam is 23 m. The horizontal…

Q: A 7.80-g bullet moving at 575 m/s penetrates a tree trunk to a depth of 5.50 cm. (a) Use work and…

A: Given, Mass of bullet m = 7.8 g= 0.0078 kg  Speed of Bullet v = 575 m/s Distance penetrated d = 5.5…

Q: Suppose that F is applied on an object to move it a distance s. Further suppose that F is measure in…

A: We need to find work done .

Q: Starting from rest, a block of mass m slides a distance d down a rough incline at an angle p. The…

A:

Q: Consider a block on a level track attached to a mass hanging from a pulley. If the track is not…

A: The work done by the friction on the moving block along the track is, Wf=Ffd=μNd=μm1gd

Q: A weight W is accelerated from rest by a constant force, G, through a distance d across the…

A:

Q: Johnny used his super muscle power to pull a box initially at rest, up an inclined plane. The…

A: angle of incline (θ) = 35oforce (F) = 250 N mass (m) = 25 kg coefficient of kinetic friction =…

Q: A crate of mass M starts from rest at the top of a frictionless ramp inclined at an angle of ? above…

A:

Q: person pulls a bucket of water up from a well with a rope. Assume the initial and final speeds of…

A: Introduction: Work is the product of the component of the force in the direction of the displacement…

Q: Ik thẻ figure below, a horizontal force F a of magnitude 24.0 N is applied to a 2.57 kg psychology…

A:

Q: A 1622 kg car has a speed of 11 m/s when it hits a tree. The tree doesn’t move and the car comes to…

A: The kinetic energy of the car before the collision is given as, The kinetic energy of the car after…

Q: Consider a roller coaster that moves along the track shown in the figure below. Assume all friction…

A: Step 1: Step 2: Step 3: Step 4:

Q: Which of the following statements are true? Select all correct.   options:   Only conservative…

A: Statment (a) is incorrect .Conservation of energy and work energy theorem can be used for both…

Q: Jack and Jill are maneuvering a 3200 kg boat near a dock. Initially the boat's position is m and…

A:

Q: An object of mass ? = 64 g slides on a frictionless table, constrained by a cord to a circular path…

A: Given data The mass is m=64 g=64×10-3 kg The radius is r=85 cm The speed is v=40 cm/s The diagram of…

Q: A 54.7-kg skateboarder starts out with a speed of 1.64 m/s. He does 89.7 J of work on himself by…

A:

Q: A block with mass m is released from rest at point A and slides down a curved slope to point B, then…

A:

Q: If the magnitude of the force she exerts on the suitcase is 25.0 N, and she does +1.14 x 103 J of…

A:

Q: A 67.6 kg runner has a speed of 5.10 m/s at one instant during a long-distance event. (a)Apply…

A: mass = 67.6 kg speed (u ) = 5.1 m/s   a) Runner's kinetic energy at this instant = (1/2) m(v)2 K.E =…

Q: Using energy considerations, calculate the distance the 65.0-kg baseball player slides,given that…

A: The initial kinetic energy of the system is

Q: What is the work done by gravity on the cart from its initial position to when it reaches the bottom…

A: Given: What is the work done by gravity on the cart from its initial position to when it reaches the…

Q: Two toboggans (with riders) of the same mass are at rest on top of a steep hill. As they slide down…

A:

Q: QUESTION How does the answer for the work done by the applied force change if the load is doubled? O…

A:

Q: In an amusement park, a car with a mass of 481 kg rolls in a track as shown below. Note that the…

A: Hi = 50 m HA = 20 m HB = 40 m Hc = 0 m m = 481 kg Speed at A = 21 m/s

Q: A student has to work the following problem: A block is being pulled along at constant speed on a…

A:

Q: A 1000kg elevator accelerates upward at 1.0m/s2 for 10m, starting from rest. (a) Draw a before and…

A:

Q: Consider the woman doing push-ups in the figure. She has a mass of 49.2 kg, and the distance from…

A: The objective of the question is to calculate the work done by the woman in doing push-ups and her…

Q: A sled has a total mass of 57 kg and is pushed with a horizontal force from rest. It accelerates at…

A:

Q: The (non-conservative) force propelling a 1.90 x 10³-kg car up a mountain road does 8.00 x 106 J of…

A: We are given the work done by propelling force. By work energy theorem, the total work done by non…

Q: Consider the forces involved in doing push-ups. The woman’s weight acts as a force exerted downward…

A: Given data The mass of the woman is: m = 50 kg The center of gravity of the woman body is: lCG =…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.