


1. You can swing a ball on a string in a vertical circle if you swing...
Suppose you swing a ball of mass m in a vertical circle on a string of length L. As you probably know from experience, there is a minimum angular velocity ωmin you must maintain if you want the ball to complete the full circle without the string going slack at the top. Find an expression for ωmin in terms of g and L . Evaluate ωmin in rpm for a 65 g ball tied to a 1.4-m-long string.
You swing a ball in a vertical circle at the end of a string that always remains taut. At the top of the circle, the centripetal force on the ball is a.)larger thant its weight,b.)onehalf of its weight c) smaller than its weight d.) equal to its weight d.) twice its weight
A tennis ball connected to a string is spun around in a
vertical, circular path at a uniform speed. The ball has a mass m =
0.153 kg and moves at v = 5.08 m/s. The circular path has a radius
of R = 0.99 m
1)What is the magnitude of the
tension in the string when the ball is at the bottom of the
circle?
2)What is the magnitude of the tension in the
string when the ball is...
A ball moves in a vertical circle attached to a light string of length 0.3 m fixed at its center. Assume that the only force acting on the ball are its weight and the tension of the string. Determine the minimum speed the ball must have, when the string makes a 90 degree angle with the vertical, so as to complete the circle by reaching the top.
A tennis ball connected to a string is spun around in a
vertical, circular path at a uniform speed. The ball has a mass m =
0.175 kg and moves at v = 5.22 m/s. The circular path has a radius
of R = 1.14 m
1.What is the
magnitude of the tension in the string when the ball is at the
bottom of the circle?
2.What is the
magnitude of the tension in the string when the ball is...
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. The ball has a mass m = 0.178 kg and moves at v = 4.75 m/s. The circular path has a radius of R = 0.91 m 1) What is the magnitude of the tension in the string when the ball is at the bottom of the circle? N Submit + 2) What is the magnitude of the tension in the...
A 99 g ball is tied to the end of a 49 cm long string and swung clockwise in a vertical circle. The center of the circle is 175 cm above the floor. What is the minimum speed necessary to make it over the top without the string going slack? The ball is being swung at this minimum speed, but then the string is released at the instant the ball is at the top of the loop. How far to...
You swing a rock tied to a string in a vertical circle. (A) Construct a consistent force diagram for the rock as it passes the low point in its swing. Use two vectors (mg and Tbottom). (B) Determine the force that the string exerts on the rock. Express your answer in terms of vt (speed of the rock in the high point in its swing), R ( length of the string), m ( mass of the rock), and constant g.
- 13. A ball attached to a string of length r rotates in a vertical circle. When the string is parallel to the ground and the ball is moving upward, the ball's velocity is v. What is the rate of change in the ball's speed at this point? asla (A) Vg2 + (04/r2) ((B)) - √g²+ (v4/72) (C) +g (D)-g (E) Not enough information is given. Fc-my²
A 900 g ball moves in a vertical circle on a 1.07 m -long string. If the speed at the top is 4.10 m/s , then the speed at the bottom will be 7.67 m/s . A) What is the ball's weight? B) What is the tension in the string when the ball is at the top? C) What is the tension in the string when the ball is at the bottom?