A 300 g ball on a 65-cm-long string is swung in a vertical circle about a point 200 cm above the floor. The string suddenly breaks when it is parallel to the ground and the ball is moving upward. The ball reaches a height 600 cm above the floor.
A 300 g ball on a 65-cm-long string is swung in a vertical circle about a...
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PHY1505/XHY1505 Oct/Nov 2015 2 1 Given the acceleration dv dt derive two equations of motion for constant acceleration. a [15] 2 (a) State Newton's third law of motion (5) (b) A 100g ball on a 60-cm-long string is swung in a vertical cırcle about a point 200 cm above the floor The string suddenly breaks when it is parallel to the ground and the ball is moving upward The ball reaches a height of...
A 5.0 kg ball is swung in a vertical circle with a radius of 75 cm. At the lowest point in its motion the ball is 40 cm above the ground. When the ball is at the highest point the tension in the string is 75 N when suddenly the string breaks. How far away horizontally does the ball hit the ground (measured from where it was when the string broke)? Include a diagram showing the circular motion the ball...
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...
- 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 child is swinging a 380-g ball at the end of a 69.0-cm-long string in a vertical circle. The string can withstand a tension of 16.0 N before breaking. (a) What is the tension in the string when the ball is at the top of the circle if its speed at that point is 3.90 m/s? (b) What is the maximum speed the ball can have at the bottom of the circle if the string does not break?
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 ball on the end of a string is whirled around in a horizontal circle of radius 0.340 m. The plane of the circle is 1.20 m above the ground. The string breaks and the ball lands 2.50 m (horizontally) away from the point on the ground directly beneath the ball's location when the string breaks. Find the radial acceleration of the ball during its circular motion. Magnitude m/s Direction
7, A 25 g ball is attached to a 0.5 m long string and swung in a circle as shown below a. Calculate the tension in the string. (2 marks) b. Calculate the centripetal force. (1 mark) c. Calculate the speed of the ball. (3 marks) d. Calculate the period of the ball's rotation. (1 mark) e. If the ball was spun faster, what would happen to the radius of the ball's path? (1 mark)
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.