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A 55-kg skier starts from rest at the top of a ski jump, point A is at the top of the ramp and is 40.6 m above the end of the ramp (point B.) the distance from the end of the ramp to the hill is 4.4 meters and the hill is at a 30 degree angle. If friction and air resistance can be neglected.
(a) determine her speed VB when she reaches the horizontal end of the ramp at B.
(b) Determine the distance (s) to where she strikes the ground.
A football player tests his vertical jump by jumping straight up a distance of 47.9 inches. What was the player's initial velocity in meters per second
Find the average force of the water on the diver. The swimmer comes to a stop 4 m below the surface. Find the average net force acting on the diver as coming to a stop in the water.
What is the torque on the root of the tooth about point A.
What is an amplitude at a point where two pulses are crossing if the end at which reflection occurs is free to slide up and down.
A small fly of mass 0.27 grams is caught in a spider's web. The web vibrates predominately with a frequency of 4.50 Hertz. What is the value of the effective spring constant stiffness constant for the web.
Two sound sources radiating in phase at a frequency of 485 Hz interfere such that maxima are heard at angles of 0 and 22° from a line perpendicular to that joining the two sources. Find out the separation between the two sources.
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m..
a baseball pitcher throws a fastball across home plate. the ball crosses the plate, calculate the speed of a baseball that takes .010 s to cross home plate, .30 m from front to back
A 710 kg car stopped at an intersection is rear-ended by a 1800 kgtruck moving with a speed of 16 m/s. If the car was in neutral andits brakes were off, so that the collision is estimated elasticfind the final speed of the truck. Find the final sp..
A potter's wheel having a radius 0.49 m and a moment of inertia 10.9 kg·m2 is rotating freely at 52 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
A downward force of 60 N is exerted on the top of the book by a hand pushing down on the book. What is the gravitational force acting on the book
A 7 kg fish is swimming at 1.8 m/s to the right. He swallows a 1.0 kg fish swimming toward him at 3 m/s. what is the velocity of the larger fish
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