A small ball, m=1.4 kg, is moving with a constant speed in a circular, horizontal path. The ball is held by a rigid, massless rod of length 2.3 m. The force on the ball is 19.3 N. Ignoring gravity, what is the ball's linear speed, in m/s?
A small ball, m=1.4 kg, is moving with a constant speed in a circular, horizontal path....
A small ball is rotating in a horizontal circular path on a massless, rigid wire around a vertical post. The radius of the ball’s orbit is 1.2 m. The moment of inertia of the center of mass of the ball about the axis of rotation is 8.6 kg m2. What is the ball’s mass, in kg?
1. A ball is revolving horizontally in a circle of radius 1.8 m, and is held by a rigid massless rod. The mass of the ball is 0.1 kg. The ball has a constant linear speed of 27 m/s. What is the angular velocity of the orbit in rad/s? a. 15 b. 2.3 c. 0.6 d. 5.4 e. 0.1
When the 1 kg ball starts to rotate around the horizontal circular path A with a Constant speed of 1 m/s the rope connecting the ball passes through a pulley (in point C, not shown in the figure), which is fixed to the ceiling. A force F is applied as shown in the figure. If the force F on the cord increases, the ball rises and eventually reaches a new position and rotates around the horizontal circular path B. The...
A ball attached to a string is moving in a vertical circular
path at a constant speed. The tension in the string is
greatest?
A) when the ball is at its highest point
B) when the ball is at its lowest point
C) when the string is horizontal
D) the tension in the string is constant
A ball attached to a string is moving in a vertical circular path at a constant speed. e tension in the string is greatest...
A 1.0 kg ball and a 2.0 kg ball are connected by a 1.4- m -long rigid, massless rod. The rod is rotating cw about its center of mass at 25 rpm . What torque will bring the balls to a halt in 4.6 s?
QUESTION 25 A 2-kg ball is moving with a constant speed of 5 m/s in a horizontal circle whose radius is 5 cm. What is the magnitude of the net force on the ball? 0 20 N 0 100 N 0 1000 N O 50N 040 N
A soccer ball with mass 0.470 kg is initially moving with speed 2.30 m/s . A soccer player kicks the ball, exerting a constant force of magnitude 39.0 Nin the same direction as the ball's motion. Over what distance must the player's foot be in contact with the ball to increase the ball's speed to 6.00 m/s?
A0400 kg ball on a 0.750 m string rotates in a circular path in a vertical plane. If the angular speed of the ball at the bottom of the circle is 9.00 rad/s, what is the force that maintains circular motion? a. 1.60 N b.24.3 N c 12.8 N d. 51.2 N
A ball of mass m-3.50 kg is attached to a horizontal massless cord of length l- 2.00 m, and the other end is fixed, as shown. The ball is released from rest from the highest point, A. Peg a. b. What is the speed of the ball when it reaches its lowest point, B? How much work is done by gravity as the ball moves from point A to point B, its lowest point? c. How much work is done...
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...