

Problem 2: A mass of 0.5 kg, is attached to a mass- less string and being...
A 0.5 KG mass attached to the end of a string swings in a vertical circle of radius 2 m. When the mass is at the lowest point of a circle, the speed of the mass is 12 m/s. The magnitude of the force in (N) of the string on the mass at this position is approximately?
Problem 5 A man is swinging an object, attached to a string, in a circle over his head (see the sketches). Side view Top view (a) Draw a free-body diagram for the object. Notice the string is not drawn horizontal in the "side view" diagram above. Why is that? (b) If the mass of the object is 1 kg, what is the vertical component of the tension? (c) If the object makes 3 turns per second, and the radius of...
A 0.25 kg ball is attached to a string. The ball goes around in a circle that is horizontal (parallel) to the ground. The circular path has a radius of 1.5 m. The rotation is at a constant rate of 50 rpm. a) list the given b) what is the tangential velocity of the ball? c) what is the centripetal acceleration (magnitude and direction)? d) what is the magnitude of the tangential acceleration? e) what is the soure of the...
A mass of m is tied to a string and allowed to revolve in a circle of radius R on a table that has a friction coefficient of zero. The other end of the string passes through a hole of radius "r" in the center of the table, and is connected to the counter weight "M." Find the tension in the string, the centripetal acceleration when the mass "m" is at "R." If mass "m" is at radius "R" what...
One end of a cord is fixed and a 0.5 kg object is attached to the other end, where it swings in a vertical circular motion of radius 2 m. When the angle is 20 degree, the speed of the object is 8 m/s. At this instant find the tension in the string, and the radial acceleration.
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
A bob on a 2 m long string is rotated in vertical circle. In a point where tangential acceleration is -6/s2, the centripetal acceleration is 25 m/s2. Find the maximum speed and the minimum speeds of the bob during this rotation.
1.Why is it important that the string attached to the revolving
mass be parallel to the platform?
A.This minimized any effects of vertical forces.
B.The tension in the system will increase.
C.The mass will come untied if the string is at an angle.
D.This minimizes the effects of centrifugal forces.
Match the motion that results from the following combinations velocity and acceleration. Velocity and acceleration in the same direction [Choose ] ✓ Increase in velocity No change in velocity Decrease...
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)
In the apparatus shown above, one end of a string of length L is
attached to a block of mass M and the other end is connected to the
axle of a motor that rotates, causing the block to move in a circle
of radius R at a constant speed vT such that the string makes an
angle θ with the vertical. A student wants to use the apparatus to
make measurements and create a graph that can be used...