Question

An object travels 20m in 5s and then another 20m in 15s.What is the average speed of an object.​

Answer 1

Answer:

v(ave)=2.16666666667 m/s

Step-by-step explanation:

Find the initial velocity

vo=do/to

vo=20 m/5 s

vo=4 m/s

Find the final velocity

vf=df/tf

vf=20 m/15s

vf=1.33333333333 m/s

Now that we have the values for initial and final velocity, we can use the

FORMULA:

v(ave)= (vf+vo)/2

SOLUTION:

v(ave)=(1.33333333333 m/s+4 m/s)/2

v(ave)=(4.33333333333 m/s)/2

v(ave)=2.16666666667 m/s