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1. The launch catapult of an aircraft carrier gives the 7Mg jet airplane gives the airplane a constant acceleration and launches the airplane in a distance of 100 m measured along the angled takeoff ramp. The carrier is moving at a constant speed of 16 m/s. If an absolute airplane speed of 90 m/s is required for takeoff.
Determine the net force supplied by the catapult and the aircraft engines.
2. A boy of mass m is standing initially at rest relative to the moving walkway, which has a constant horizontal speed U. He decides to accelerate his progress and starts to walk from point A with a constantly increasing speed and reaches point B with a speed of (Xdot) = v relative to the walkway.
During his acceleration he generates an average horizontal force F between his shoes and the walkway.
1) Write the work - energy equations for his absolute and relative motions.
2) Explain the meaning of the term: mUv
An experiment is performed on a level road with a car initially traveling at a speed v. Find the distance of the skid marks will now be
A 30g dart is shot straight up at 10m/s . At the same instant, a 24g ball of cork is dropped from 2.0m above the dart. What is the speed of the cork ball immediately after it is hit by the dart
A 2 kilogram block is attached to a horizontal ideal spring with a spring constant of 200 N/m. Estimate the maximum elongation of the spring
A car travels north at 28.9 m/s for 14.3 min. It then travels south at 40.1 m/s for 28.5 min. a) What is the total distance the car travels? b) What is the displacement of the car?
A spherical conductor is charged so that its surface potential is Vo=1000V. If the radius of the sphere is R=10m, what is the potential in the center of the sphere
Two neutrons are in an infinite square well with L = 2.0 fm. What is the minimum total energy that the system can have? ( Neutrons, like electrons have antisymmetric wave functions ignore spin).
an arrow starting from rest leaves the bow with a speed of 10.0 ms. if the average force exerted on the arrow by the
A 60-g ice cube at 0°C is heated until 54 g has become water at 100°C and 6.0 g has become steam at 100°C. How much energy was added to accomplish the transformation
A father clock is controlled by a swinging brass pendulum that is 1.1 meter long at a temperature of 23°C. Determine the change in the length of the pendulum rod
The moment the other student passes you, you start accelerating at 2.67 m/s2, After what distance will you catch up with your classmate
A soccer ball is kicked with an initial speed of 28 m/s at an angle of 22° with respect to the horizontal. Find the maximum height reached by the ball
consider the electrons of a speed .99999999967c of produced by the stanford linear accelerator, what is the magnitude of momentum of such an electron
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