Question

.A rabbit accelerates at 15 m/s². How long does it take him to accelerate from rest to 39m/s?

Answer 1

Considering the variation of speed of the rabbit is 15 m/s^2 and it reaches 39m/s, we can find out the time through the following formula:

`(\Delta v)/(\Delta t)=a\rightarrow\Delta t=(\Delta v)/(a)=(39)/(15)=2.6s`

Then, our final answer is t=2.6s

Tip: On how to find out the time without applying a formula

The answer we want is the time, therefore, it is measured in seconds. The problem gives us two values, one in m/s and the other in m/s^2. We can think of a way to combine these two values in order to obtain an answer in seconds. For this example, if we multiply them