1. Suppose that a car at rest begins accelerating at a constant rate of 15ft/sec2. (a) Determine how many seconds it takes for the car to reach a velocity of 60mph. (b) Determine how far the car has moved in feet once it reaches the desired velocity.

Q: travelling ke to stop with W1 WI ning

A:

Q: An object of mass 2 kg is subjected to a varying force, and it moves along a straight line with time…

A:

Q: A 16 pound weight moves in a horizontal straight line under the joint action of a constant force of…

A: Given data: -  The magnitude of the weight is m = 16 pound. The constant force is F = 8 pound. The…

Q: Blocks A and B shown in figure below have a mass of 10 kg and 100 kg, respectively. Determine the…

A:

Q: roller coaster car has mass of 880 kg and has a speed that increases at a = (6.0 – 0.04 s) m/s,…

A:

Q: A car A travelling at the speed of 25 km/h while a car B travelling at the speed of 70 km/h as shown…

A:

Q: accelerating at a rate of 1.2 m/s², until it reaches a speed of 6.8 m/s, which it maintains. 2.0…

A:

Q: Human centrifuges are often used to simulate different acceleration levels for pilots. When…

A: The forces acting on the pilot are gravitational force vertically downward, Mg and the normal…

Q: A steel ball is thrown up from the top of a tower of height 115 m with a velocity of 50 m/s . While…

A: Given: ht = height of tower = 115 m V1 = velocity from tower to maximum height in upper direction =…

Q: A 130-lb block is pulled up by a constant force P through a cable to move up the inclined surface…

A:

Q: A 70lb child is standing in a 100lb boat that is initially at rest. If the child jumps horizontally…

A: Given data as per question weight of child =70 lb weight of boat =100 lb speed of child =6 ft/s

Q: The crate, having a weight of 58 lb, is hoisted by the pulley system and motor M. The crate starts…

A:

Q: Two cars collide at an intersection. Car A, with a mass of 2027 kg, is going from west to east, car…

A: Given Data Mass of car A is : mA=2027 kg Mass of car B is :mB=1535 kg Velocity of car B is : VBy=18…

Q: The work done by a car traveling at a constant speed on a flat road can be computed based on the…

A: (a) Calculate the distance travelled in first 20 s. D = 60*0.447*20…

Q: A 60kg woman holds a 9kg package as she stands within an elevator that briefly accelerates upward at…

A:

Q: Q1. One 2 kg pebble is moving left on frictionless ice at a speed of v = 10 m/s as shown in Fig 1.…

A:

Q: A block with a mass of m is dropped from a certain height. An undeformed spring with a spring…

A: Given:Spring constant, k=450 N/mDistance between the top of the spring and the block, S=3 m

Q: Question 3: The motor exerts a force of F = 20 t² N on the cable, where t is in seconds. Determine…

A: Draw the free body diagram of the problem: Apply newtons second law in vertical direction:…

Q: Q1) A motorcycle patrolman starts from rest at A three seconds after a car, speeding at the constant…

A:

Q: A 1-lb stone is dropped down the "bottomless pit" at Carlsbad Caverns and strikes the ground with a…

A:

Q: A vehicle with a mass of 1500 kg begins its ascent from rest up a hill with an inclination…

A:

Q: A steel ball is thrown up from the top of a tower of height 80 m with a velocity of 50 m/s . While…

A: In general, position of an object is defined as the location at which object is placed. Then change…

Q: A 1,207-kg car generates the traction force F described by the graph. The initial speed is 6 m/s,…

A:

Q: 4. An SUV travels a 1.30 km levelled road from Bonifacio Rotunda to Citylights Hotel ip a minimum…

A: Given DataS=1.3kmt=45.6sa=2.53m/s2

Q: A 100-kg box is towed to move horizontally from rest by a constant force P=200 N. The kinetic…

A: Given: To find: Velocity at 2 seconds

Q: A lorry of mass 1350 kg accelerates uniformly from 9 km/h to reach a velocity of 45 km/h in 18 s.…

A: Given:Mass of lorry, m = 1350 kgInitial velocity, u = 9 km/h or 2.5 m/sFinal velocity, v = 45 km/h…

Q: Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be…

A: The calculated kinetic energy of stone and height from which stone was dropped in ft.

Q: 4. Two blocks with the same mass are connected to a compressed spring at opposite ends. At first,…

A: As initially compressed spring and block system moves together with speed v towards right so initial…

Q: The two systems shown start from rest. On the left, two 200-N weights are connected by an…

A:

Q: 3. An automobile moving at a constant velocity of 45 ft per sec passes a gasoline station. Two…

A: Given:Velocity of 1st car, v1=45 ft/sacceleration of 2nd car, a1=6 ft/s2

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.