If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.4m/s^2, how long does it take for the antelope to reach a speed of 23 m/s? Ans in s
vf=vi+at
solve for time, t
To find the time it takes for the pronghorn antelope to reach a speed of 23 m/s, we can use the equation of motion:
v = u + at
where:
v = final velocity (23 m/s)
u = initial velocity (0 m/s, as it starts from rest)
a = acceleration (1.4 m/s^2)
t = time
Rearranging the equation to solve for time (t), we have:
t = (v - u) / a
Substituting the given values, we get:
t = (23 m/s - 0 m/s) / 1.4 m/s^2
t = 16.43 s
Therefore, it takes approximately 16.43 seconds for the pronghorn antelope to reach a speed of 23 m/s.