a) The force in the string is always opposite to the direction of motion.
b) The direction of the centrepetal force changes but speed will be constant.
c) Yes, when a particle is rotating in a circular path then the particle has centrepetal acceleration.
A string is attached to a ball and the ball is being swung in a horizontal...
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)
A 10kg ball attached to a 2.0m string moves in a horizontal circle on a smooth table at uniform speed, making one revolution each 1/2 second. If the mass, radius, and time are all measured to 10% accuracy, find: a) The tension in the string. b) The maximum and the most probable values of the absolute uncertainty in the tension. c)The relative uncertainty in the tension using both the maximum and the most probable uncertainties.
A small ball at the end of a string that passes through a tube is swung in a circle. When the string is pulled downward through the tube the angular speed of the ball: A) increases; B) decreases; C) does not change;
A 0.2 kg tennis ball attached to a 2 m long string is being swung in a horizontal plane at 200rpm, what is the tension in the string? please help, my professor got 175 N but i am not sure how.
A 0.2 kg tennis ball attached to a 2 m long string is being swung in a horizontal plane at 200rpm, what is the tension in the string? please help, my professor got 175 N but i am not sure how.
5) A ball on a 1.4 m long string is being whirled in mid-air in a horizontal circle at a constant speed. The tension in the string is 26 N and the mass of the ball is 0.74 kg. a) What angle does the string make with the horizontal? (Also, why is the string not parallel to the ground?) b) What is the speed of the ball? Be warned, the radius of the circular motion is not the length of...
A 0.3 kg ball, at the end of a 0.75 m string is swung in a circle at a constant velocity of 4 m/sec. The centripetal force of the ball is: _________ , and the angular momentum of the ball is: _________. I know that the answer is: 6.4 N and 0.9 kgm2, but I have no idea how to solve the answer. Please explain and show all of the steps to get the answer.
A physics instructor whirls a tennis ball of mass m attached to a string in a circular path of radius R in horizontal plane over his head. When the ball has a speed s the tension in the string is 10 N. B.) In what direction does the Tension point? Explain. a. tangential to the circular path b. from the center of the circle toward the ball c. from the ball toward the center of the circle
Flashlight A 0.7- kg flashlight is swung at the end of a string in a horizontal circle of 0.45- m radius with a constant angular speed. If no torque is applied, what must the radius become if the angular speed of the flashlight is to be halved?
please ansa all
A car travels around a curve with constant speed. The correct statement from the following is the car has an acceleration directed inward toward the center of the curve. the velocity of the car is constant. the car has an acceleration direction outward from the center of the curve. the car has zero acceleration. the car has an acceleration directed in the instantaneous direction of the velocity vector. A ball is whirled on the end of a...