7. A 1.35-kg ball is tied to a 1.36-m long string is being spun in a vertical circle at a constant speed and with a period of 1.95 s. What is the maximum tension in the string? X 50.4 N MacBook Air
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- 15. An object of mass m = 6.0 kg is rotating in a circular path in a vertical plane at the end of a string of length 3.0 m. At the moment the string makes an angle of 60 degrees relative to the vertical, as shown below, the object's speed is 8.0 m/s. What is the tension (in N) in the string? 8.0 m/s 6.0 kg 60° Vmg (a) 162.6 (b) 112.9 (c) 98.6 (d) 117.6 (e) None of these 60⁰! SEL (0) 2AE- (0) ast- (b) [(0)13. A 2.50 kg ball is swung on a string in such a way that is moves in a horizontal circle at constant speed. The string is .750 m long and makes an angle of 37° to the vertical. a. What is the tension in the string? b. How fast does the ball move? l=,75mA 0.30-kg object attached to the end of a string swings in a vertical circle (radius = 60 cm). At the top of the circle the speed of the object is 6.2 m/s. What is the magnitude of the tension in the string at this position? Question 1 options: 22 N 6.6 N 16 N 19 N 54 N
- 1. A hoop of radius 0.30 m and a mass of 0.25 kg is released from rest and allowed to roll down an inclined plane. What is the translational speed (v) of the hoop after dropping a vertical distance of 2.60 m? m/s 160 ssf ssf60A car moves at a constant speed around a loop of a radius 5 meters in 6 seconds. The time of the car’s PERIOD through the loop is… A. 1 B. 2 C. 3 D. 4 E. 5 F. 6 G. 7 H. 8 I. 9 G. 10A rubber ball is attached to a 1.44-meter string and spun in a horizontal circle. The tension in the string is 2.91 N. It takes 0.644 s for the ball to complete one revolution. Determine the mass (in kg) of the ball.
- 10. A 260-g ball is tied to a string and it is being swung faster and faster in a nearly horizontal circle. When the speed reaches 16.5 m/s the tension reaches a value of 60.0 N, the string breaks. What is the radius of the circle? cm8. DETAILS Need Help? Instead of moving back and forth, a conical pendulum moves in a circle at constant speed as its string traces out a cone (see figure below). One such pendulum is constructed with a string of length L = 11.3 cm and bob of mass 0.230 kg. The string makes an angle 05.06° with the vertical. T (a) What is the radial acceleration of the bob? magnitude m/s2 direction inward m Bob Read It MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (b) What are the horizontal and vertical components of the tension force exerted by the string on the bob? (Assume radially inward to be the positive x axis and vertically upward to be the positive y axis. Express your answer in vector form.) T= NNASA uses a machine often called the "vomit comet" to mimic the effects of low gravity in space during astronaut training. The machine moves in circular arcs at a speed of v = 214 m/s. What is the radius the pilot must fly to create weightlessness as they go around the top of the circular arc? Give your answer in meters.
- A small object of mass 0.500 kg is attached by a 0.840 m-long cord to a pin set into the surface of a frictionless table top. The object moves in a circle on the horizontal surface with a speed of 8.80 m/s. What is the magnitude of the radial acceleration of the object?A small object of mass 0.500 kg is attached by a 0.830 m-long cord to a pin set into the surface of a frictionless table top. The object moves in a circle on the horizontal surface with a speed of 7.54 m/s. a.)What is the magnitude of the radial acceleration of the object? b.)What is the tension in the cord?