Hey i wanna to know is this concept is right? ​

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

What was the first instrument to ever record an earthquake?

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.