joserodriguez103003 joserodriguez103003
  • 25-02-2021
  • Physics
contestada

A shark is cruising at 4 m/s when it sees a fish straight
ahead. The shark increases its speed to 9 m/s in 2
seconds. How far does the shark travel in this time?

Respuesta :

Lanuel
Lanuel Lanuel
  • 02-03-2021

Answer:

Distance, S = 13m

Explanation:

Given the following data;

Initial velocity, u = 4m/s

Final velocity, v = 9m/s

Time, t = 2 seconds

To find the distance, S;

First of all, we would determine the acceleration of the shark.

Acceleration = (v - u)/t

Acceleration = (9 - 4)/2

Acceleration = 5/2

Acceleration = 2.5m/s²

Now, to find the distance we would use the second equation of motion

S = ut + ½at²

Substituting into the equation, we have

S = 4(2) + ½*2.5*2²

S = 8 + 1.25*4

S = 8 + 5

Distance, S = 13m

Answer Link

Otras preguntas

What is direct variation?
You are rolling two dice at the same time. What is the probability of rolling a sum of 5 or 9?
A solution with higher pH levels is more A. basic. B. neutral. C. acidic. D. soluble.
which sentence is opinion rather than fact? 1. Humans will never travel to planets around even the nearest stars. 2. When you see the Sun, you aren't seeing it
Which of the following is a sentence fragment?  A.Caffeine is a stimulant children should avoid.  B.He simply refuses.C.Could both sides be correct?  D.Running
damon has 5 dimes and some nickles in his pocket what is the error 5n+50=1.20
Please help me with this math question if you can.
Why is DNA like a memory card?
A running track is1/3 of a kilometre. What is the total distance a runner travels if he goes four times around track
I need help on thinking of a sentence for Manifest Destiny