Question

When a mantis shrimp strikes, its arm-club gets up to a velocity of 23 m/s moving away from its body. Scientists calculate the acceleration at 100,000 m/s/s.
How long does it take the arm-club to get to 23 m/s?

Answer 1

Answer:

$t=4.6\times 10^{-4}\ s$

Step-by-step explanation:

We have,

Initial velocity of arm club is 23 m/s

Acceleration is 100000 m/s²

It is required to find the time taken by it to take the arm-club to get to 23 m/s. It means v = -23 m/s. It is based on the equation of kinematics such that :

$v=u+at\\\\t=\dfrac{v-u}{a}\\\\t=\dfrac{-23-23}{100000}\\\\t=4.6\times 10^{-4}\ s$

So, the time taken by it is $4.6\times 10^{-4}\ s$.