An 8kg ball hangs from a 2m long cord, when the ball is at an
angle of 30 degrees calculate the normal and tangental acceleration
components .

An 8kg ball hangs from a 2m long cord, when the ball is at an angle...
An elastic cord is 70 cm long when a weight of 80 N hangs from it but is 84 cm long when a weight of 200 N hangs from it. What is the "spring" constant k of this elastic cord? Express your answer to two significant figures and include the appropriate units.
An elastic cord is 61 cm long when a weight of 75 N hangs from it but is 85 cm long when a weight of 210 N hangs from it. What is the “spring” constant k of this elastic cord? also, find the frequency of the motion with the 210N object hanging on it (Physics 'Algebra base')
A 2kg steel ball hangs on a 8.0-m-long string. The ball is pulled sideways to an angle of 45°, then released. At the very bottom of the swing the ball strikes a 3kg steel block (perfectly elastic collision) that is resting on a frictionless table with a spring (k=20,000 N/m) further down. (a 10 points) To what maximum angle does the ball rebound (degrees)? b 5 points) What is the compression in the spring (m)?
Consider the conical pendulum which has a mass of 8kg and a rope 5 meters long, when rotating the rope forms an angle of 10 degrees with the vertical (see figure). Determine a) the vertical and horizontal components of the force exerted by the rope on the mass, b) the radial acceleration, c) the tangential speed, d) the period of rotation (Draw the vector system) We were unable to transcribe this image
A small ball (mass 0.3kg) hangs from the ceiling of a car at the end of a 30cm long string (but the string itself is essentially massless). When the car accelerates, the ball moves toward the back of the car and the string makes an angle θ=14∘ with the vertical, as shown in the figure. What is the magnitude of the car's acceleration
A small ball (mass 0.6kg) hangs from the ceiling of a car at the end of a 30cm long string (but the string itself is essentially massless). When the car accelerates, the ball moves toward the back of the car and the string makes an angle θ=12∘ with the vertical, as shown in the figure. What is the magnitude of the car's acceleration?
A 1500kg wrecking ball hangs from a 20m -long cable. The ball is pulled back until the cable makes an angle of 30.0? with the vertical. By how much has the gravitational potential energy of the ball changed?
A 2kg steel ball hangs on a 8.0-m-long string. The ball is pulled sideways to an angle of 45°, then released. At the very bottom of the swing the ball strikes a 3kg steel block (perfectly elastic collision) that is resting on a frictionless table with a spring (k-20,000 N/m) further down. (a 10 points) To what maximum angle does the ball rebound (degrees)? h (b 5 points) What is the compression in the spring (m)?
A 2kg steel ball hangs on a
8.0-m-long string. The ball is pulled sideways to an angle of 45°,
then released. At the very bottom of the swing the ball strikes a
3kg steel block (perfectly elastic collision) that is resting on a
frictionless table with a spring (k=20,000 N/m) further down. (a 10
points) To what maximum angle does the ball rebound (degrees)? (b 5
points) What is the compression in the spring (m)?
h XXXX
A 5.59-kg ball hangs from the top of a vertical pole by a 2.49-m-long string. The ball is struck, causing it to revolve around the pole at a speed of 4.33 m/s in a horizontal circle with the string remaining taut. Calculate the angle, between 0