QUESTION 9 Consider a system of masses that consists of mass m1 -2 kg rotating at vr in a circle of radius r-.5 m. There is a mass m2 = 15 kg suspended under the table by the string attached to m1. The hole the string goes through at the center of the table is frictionless. a) Draw the freebody diagrams for the two masses b) Sum the forces for the rotating mass. c) Sum the forces for the hanging mass. d) Determine the tangential velocity VT which would keep the system in equilibrium.
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- A car (m = 1069 kg) is moving at 16 m/s when it encounters a circular dip in the road of radius 97 m. Assuming the car maintains constant speed the entire time, what would be the magnitude of the force of gravity at the bottom of the dip? b.What is the magnitude of the car's acceleration at the bottom of the dip? c.What is the magnitude of the Normal Force on the car at the bottom of the dip?2) A roller coaster is going over a hill with a radius of 20 m. a. How fast does it have to go for the passengers to feel weightless at the top? b. Suppose the roller coaster was running on the Moon, where the acceleration of gravity is only 1.7 m/s^2. How fast would it need to travel for you to feel weightless there?A conical pendulum is set up with a bob whose mass is 6.0 kg. When it is set in motion, at a speed of 0.60 m/s, the string makes a 12.0 degree angle with the vertical. a) Find the radius of the horizontal circle the conical pendulum traces out. b) Find the length of the string.c) Find the magnitude of the tension in the string.
- Suppose a 45 kg person rides a ferris wheel with a diameter of 62 meters. The ferris wheel completes one revolution in 32 seconds. a. calculate the person's apparent weight at the top. b. Calculate the person's apparent weight at the bottom. c. suppose the ride is sped up to where the apparent weight at the top is zero. what would be the time for one revolution?2-D star cluster puzzle Find the net gravitational force for III) Pentagon Let m=mass of the star = 1.99 x 10^30 kg, l=earth to star distance=149.6 x 10^6 km, G=6.67 x10^-11 N m^2/kg^2. Note that the masses of each star are the same. Also, it is advised to use vectors and components. And you can just find the gravitational net force of one of the stars in the shapeAn astronaut of mass m experiences a weight of mg upon the surface of the moor of radius R. Identify the gravitational force exerted on the astronaut by the moon in orbit a distance of 3R above the surface of the moon. A. 1/16 mg B. 16mg C. 1/9 mg D. mg E. (1/3)mg
- Question answerThree objects A, B and C are in a straight line, as shown below If the value of the gravitational constant G = 6.67 ×10^(-11) kg^(-1) m^(3) s^(-2) Calculate : A. The magnitude of the gravitational force acting on the object BB. the direction of the gravitational force on the object B solve subparts A,B based on imageAnna Litical is riding a "woody" roller coaster. Anna encounters the bottom of a small dip having a radius of curvature of 15.0 m. At the bottom of this dip Anna is traveling with a speed of 16.0 m/s and experiencing a much larger than usual normal force. Use Newton's second law to determine the normal force acting upon Anna's 50-kg body.
- After the Apollo 13 capsule swung around the Moon, the crew was able to speed up for the journey back to Earth by firing the Lunar Module (LM) descent engine. a.True b. False Which of the following is the most natural sleeping position in zero gravity? in a sleeping bag taped to any surface, with your arms floating out in front of your chest floating in mid-air with your legs straight and your arms straight at your sides flat on your back on the floor, with your arms resting on your chest curled in a fetal position, floating in mid-airA 1.5 kg mass is spun on a string in a horizontal circular path at a constant speed. a)Draw a free-body diagram for the mass. b)if the radius of the path is 0.5m and the period of revolution is 0.25 s,what is the speed of the mass? C) what is the centripetal force that is keeping the mass in a circular path ?d) what is the net force acting on the mass in the horizontal direction?