You swing a ball in a vertical circle at the end of a string that always...
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
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You swing a ball in a vertical circle at the end of a string
that always...
1. You can swing a ball on a string in a vertical circle if you swing...
1. You can swing a ball on a string in a vertical circle if you swing it fast enough. But if you swing too slowly, the string goes slack as the ball nears the top. Explain why there's a minimum speed to keep the ball moving in a circle.
Suppose you swing a ball of mass m in a vertical circle on a string of...
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 rock tied to a string in a vertical circle. (A) Construct a consistent...
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.
A ball moves in a vertical circle attached to a light string of length 0.3 m...
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 spherical mass on the end of a string is spinning in a vertical circle about...
A spherical mass on the end of a string is spinning in a vertical circle about point P. Which of the forces acting on the mass contribute to the "centripetal force" when the mass is in position A? Select all that apply. The tension in the string. The force of gravity (weight). The force of drag (air resistance). Which of the forces acting on the mass contribute to the "centripetal force" when the mass is in position B, directly to...
A ball at the end of a string moves in a vertical circle with constant mechanical...
A ball at the end of a string moves in a vertical circle with constant mechanical energy E. What is the difference between the tension at the bottom of the circle and the tension at the top? (Let m be the mass of the ball and g the acceleration due to gravity.) TB-Tr= eBook Submit Answer Save Progress
A 900 g ball moves in a vertical circle on a 1.07 m -long string. If...
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?
A 0.9 kg ball attached to a cord is whirled in a vertical circle of radius...
A 0.9 kg ball attached to a cord is whirled in a vertical circle of radius 2.5 m. Find the minimum speed needed at the top of the circle so that the cord remains taut and the ball’s path remains circular.
Conceptual Question 6.14 Playground swings move through an arc of a circle. Part A When you...
Conceptual Question 6.14 Playground swings move through an arc of a circle. Part A When you are on a swing, and at the lowest point of your motion, is your apparent weight greater than, less than, or equal to your true weight? Explain Drag the terms on the left to the appropriate blanks on the right to complete the sentences. In circular motion there must be a centripetal force directed the center. At the bottom of the swing trajectory we...
A ball of mass 50g is fixed to the end of a 40 cm long string...
A ball of mass 50g is fixed to the end of a 40 cm long string of negligible mass. The other end of the string is tied to a fixed point. The ball is free to swing on the string. Initially, the ball is held so the string is taut and horizontal. The ball is then released and is observed to a swing in a vertical plane. A) Neglecting friction, the maximum kinetic energy of the ball as it swings...
1. You can swing a ball on a string in a vertical circle if you swing it fast enough. But if you swing too slowly, the string goes slack as the ball nears the top. Explain why there's a minimum speed to keep the ball moving in a circle.
A spherical mass on the end of a string is spinning in a vertical circle about point P. Which of the forces acting on the mass contribute to the "centripetal force" when the mass is in position A? Select all that apply. The tension in the string. The force of gravity (weight). The force of drag (air resistance). Which of the forces acting on the mass contribute to the "centripetal force" when the mass is in position B, directly to...
A ball at the end of a string moves in a vertical circle with constant mechanical energy E. What is the difference between the tension at the bottom of the circle and the tension at the top? (Let m be the mass of the ball and g the acceleration due to gravity.) TB-Tr= eBook Submit Answer Save Progress
Conceptual Question 6.14 Playground swings move through an arc of a circle. Part A When you are on a swing, and at the lowest point of your motion, is your apparent weight greater than, less than, or equal to your true weight? Explain Drag the terms on the left to the appropriate blanks on the right to complete the sentences. In circular motion there must be a centripetal force directed the center. At the bottom of the swing trajectory we...
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