Charity W.

A rock is dropped from the top of a tall tower. Half a second later another rock, twice as massive as the first, is dropped. Ignoring air resistance, (A) the distance between the rocks increases while both are falling. (B) the acceleration is greater for...

In a simple harmonic oscillator that is vertical(so the forces on the mass is gravitational and/or spring), if more mass is added at the end, will the amplitude change? Why?

Use the kinematic formula vf^2=vi^2+2ad. 50^2=30^2+2*a*300 Solving for "a" gives 2.67 m/s/s, or 3 m/s/s if you must use significant digits. Remember that when you have 3 knowns and acceleration is constant, you can use kinematics to find an unknown.