In a historic first, a human expedition arrives on an alien…

In a historic first, a human expedition arrives on an alien planet called 67Beatle-s. The Astronaut, Sgt. Pepper, uses a pendulum to calculate the acceleration due to gravity on this planet. She finds that she needs a simple pendulum with a length of 10.0 cm to make one full oscillation in 1.00 second.  What is the magnitude of the acceleration due to gravity on this alien planet?

As noted above and shown in the picture, the ball was given…

As noted above and shown in the picture, the ball was given an initial velocity that is in the horizontal direction. The magnitude of that initial velocity is 10.0m/s and the ball’s initial height above the ground is 1.50m. How much time does the ball take to reach the ground?