Answer:
The slope of a graph of position vs time
Answer:
Approximately 8 seconds (which seems to be Answer B although there is a typo)
Explanation:
Use the formula that defines acceleration of an object as the difference between its final velocity and its initial velocity divided by the time it took to go from one to the other:
We use this expression and the values given to solve for the unknown "t" (time):
Given the units of the physical quantities, the answer for t is in seconds. We round it to about 8 seconds.
The most frequent you can do an activity for a workout should be every other day. It is unsafe to exercise (especially for weightlifting) everyday, because our muscles need time to rest and grow. Overworking them may cause injuries, and decreased growth.