Recent content by i_heart_you

Simple harmonic motion question! Homework Statement A mass undergoing simple harmonic motion has a displacement of X = 0.5 m and V = 4 m/s at one time and x=.25 and V = -8. what is the period of this oscillation? Homework Equations X(t) = Acos (wt + phi) V(t) = -Awsin (wt + phi)...

Homework Statement A tennis ball of mass m is held just above a basketball of mass M. Their centers are vertically aligned. Both are released at the same moment, and fall a distance of h until the basketball hits the ground, which it rebounds from elastically, and then undergoes an...

Homework Statement A ball is thrown with a speed of 70m/s and hits the top of a wall which is 20m tall and 100m away. Find the angle that the ball was thrown at Homework Equations d= V0xt + 1/2 a t^2 a = Vf-V0/t sin^2(theta) = 1 - cos^2 (theta) The Attempt at a Solution I found...

thanks for your help... i finally figured it out i just had to split up the displacements into initial and final and make the final displacements equal to each other...

2 cars drag racing question... Homework Statement The first car has a constant velocity of 40 m/s and moves 10 m before the 2nd car starts moving. The second car speeds up with an acceleration of 3.6 m/s^2. What is the time and the displacesment before the 2 cars actually meet...