A Thomson's gazelle can run at very high speeds, but its acceleration is relatively modest. A reasonable model for the sprint of a gazelle assumes an acceleration of 4.2 m/s2m/s2 for 6.5 ss , after which the gazelle continues at a steady speed. What is the gazelles top speed?

v = 27.3 m/s

Explanation:

Given that

Acceleration ,a= 4.2 m/s²

Time ,t= 6.5 s

Lets take the maximum speed gain by Thomson's= v

We know that ,if acceleration is constant then the speed v is given as

v= u +  a t

v=final speed

u=initial speed

a=acceleration

t=time

Here the initial speed of Thomson's ,u = 0 m/s

Now by putting the values in the above equation we get

v= 0 + 4.2 x 6.5 m/s

v = 27.3 m/s

Therefore the maximum speed gain by Thomson will be 27.3 m/s.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.