The work done by the spring on the ball is equal to the kinetic energy of the ball as it is launched:
Ek = (1/2)kx2
x is the length of compression, k is the spring constant.
The velocity of the ball can be calculated by using:
(1/2)mv2 = Ek
Substitute the values of Ek and x. Solve for the velocity, v.
How high could a .5kg basketball be launched by a spring, if the spring is compressed by 0.2m and has a constant of 200N/m?
How fast would the basketball be going just as it left the spring?
3 answers
thank you for your help. :)
A rocket moves upward, starting from rest with an acceleration of 25.1 m/s2 for 4.93 s. It runs out of fuel at the end of the 4.93 s but does not stop. How high does it rise above the ground?
1 answer