Help please :pensive: A boat is initially sailing South at 8 meters per second. After 4 seconds, it is sailing North at 8 meters per second. What was the boat's acceleration?

Question 9 options:

0 ms2

32 ms

64 m

4 ms2

Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?

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

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?