The string in the figure is 50.0 cm long. When the 392 g ball is released from rest, it swings along the dotted arc. What is the kinetic energy of the ball at the bottom of the arc?
Change in kinetic energy=loss in potential eneregy of the ball:
Since ball is released from res initial kinetic energy is zero:



Hence kinetic energy at the bottom of the arc=1.9208J
The string in the figure is 50.0 cm long. When the 392 g ball is released...
A pendulum is made by tying a 540 g ball to a 50.0 cm -long string. The pendulum is pulled 25.0 ∘ to one side, then released. a. What is the ball's speed at the lowest point of its trajectory? b. To what angle does the pendulum swing on the other side?
1)The string in the figure is L = 100.0 cm long, and the distance d to the fixed peg at point P is 62.5 cm. When the initially stationary ball is released with the string horizontal as shown, it will swing along the dashed arc. What is its speed when it reaches its lowest point 2)What is its speed when it reaches its highest point after the string catches on the peg 3) A constant force of 45.5 N, directed...
An 8.20-cm-diameter, 380 g sphere is released from rest at the top of a 1.90-m-long, 15.0 ∘ incline. It rolls, without slipping, to the bottom. A) What is the sphere's angular velocity at the bottom of the incline? B) What fraction of its kinetic energy is rotational?
An 8.80-cm-diameter, 380 g solid sphere is released from rest at the top of a 2.00-m-long, 16.0 ∘ incline. It rolls, without slipping, to the bottom. What is the sphere's angular velocity at the bottom of the incline? What fraction of its kinetic energy is rotational?
An 7.90-cm-diameter, 330 g solid sphere is released from rest at the top of a 1.60-m-long, 16.0 ∘ incline. It rolls, without slipping, to the bottom. What is the sphere's angular velocity at the bottom of the incline? What fraction of its kinetic energy is rotational?
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...
An 8.10-cm-diameter, 300 g solid sphere is released from rest at the top of a 1.60-m-long, 16.0 ? incline. It rolls, without slipping, to the bottom. a)What is the sphere's angular velocity at the bottom of the incline? b)What fraction of its kinetic energy is rotational?
An 8.80-cm-diameter, 340 g solid sphere is released from rest at the top of a 1.60-m-long, 20.0 ∘ incline. It rolls, without slipping, to the bottom. Part A What is the sphere's angular velocity at the bottom of the incline? Part B What fraction of its kinetic energy is rotational?
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 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...