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E) 39.2 J What 40. A roller-coaster car is moving at 20 m/s along a straight...
hello, can someone help with #17. step by step, im kinda confused A. increases constantly. B. decreases constantly. C. is constant. D. depends on work into the system. E. depends on work out of the system A spring-loaded gun shoots a 12 g plastic ball with a speed of 3 m/s when its spring is compressed by 10 cm. What is the spring constant 17. A. 6 N/m B. 22 N/m C. 110 N/m 2 None of the above E....
A roller-coaster car has a mass of 660 kg when fully loaded with passengers. The car passes over a hill of radius 15 m, as shown. At the top of the hill, the car has a speed of 8.2 m/s. What is the force of the track on the car at the top of the hill?
A roller-coaster car has a mass of 500 kg when fully loaded with passengers. The car passes over a hill of radius 15 m, as shown. At the top of the hill, the car has a speed of 8.0 m/s. What is the force oof the track on the car at the top of the hill?
A roller coaster of mass 80.0 kg is moving with a speed of 20.0 m/s at position A as shown in the figure. The vertical height above ground level at position A is 200 m. Neglect friction. a. What is the total mechanical energy of the roller coaster at point A? EA = b. What is the total mechanical energy of the roller coaster at point B? EB = c. What is the speed of the roller coaster at point...
8) A roller-coaster car has a mass of 1780 kg when fully loaded with passengers. The car passes over a hill of radius 15 m, as shown. At the top of the hill, the car has a speed of 17.9 m/s. What is the force of the track on the car at the top of the hill? 15 m
A The length of the roller coaster track is 100 ft and the elevation change of the track from point A, at the bottom of the track, to point B, at the top of the track is 20 ft. The roller coaster car, including the passengers, weights 1,200 lb, and the force of friction between the car and the tracks is 20 lb. The speed at point A is 45 ft/s. Determine the speed at point B. B Solve the...
prove one option out of the given options. e. V.6/RN 4.A roller-coaster car has a mass of 500 kg when fully loaded with passengers. The car passes over a hill of radius 15 m, as shown. At the top of the hill, the car has a speed of 8.0 m/s. What is the force of the track on the car at the top of the hill? 8.0 m/s a. 7.0 kN up b. 7.0 kN down c. 2.8 kN down...
In the figure, a frictionless roller coaster car of mass m = 637 kg tops the first hill with speed v0 = 19.3 m/s at height h = 37.2 m. How much work does the gravitational force do on the car from that point to (a) point A, (b) point B, and (c) point C? If the gravitational potential energy of the car-Earth system is taken to be zero at C, what is its value when the car is at...
dynamic 14-86. The roller-coaster car has a speed of 15 ft/s whe it is at the crest of a vertical parabolic track. Determi the car's velocity and the normal force it exe on the track when it reaches point B. Neglect friction and the mass of the wheels. The total weight of the car and the passengers is 350 lb. ne VA 15 ft/s y y-200 (40 000-2) 200 ft 200 ft Prob. 14-86 14-86. The roller-coaster car has a...
A roller-coaster car has a mass of 500 kg when fully loaded with passengers At the bottom of a circular dip of radius 40 m (as shown in the figure) the car has a speed of 16 m/s. What is the magnitude of the force of the track on the car at the bottom of the dip?