A 300 kg cannon recoils with an acceleration of 50 m/s/s. What is the acceleration of the 20 kg cannonball?

May someone explain how to do this question?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

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.