Question

an object moves at 10 km/h for 10 minutes and then moves 15km/h for15 minutes.find a..total distance travelled by the object ..b.. average speed of the object ​

Answer 1

Answer:

a).5.45 km

Explanation:

a). Convert minutes to hours:

    10 minutes=0.17 hours

     15 minutes=0.25 hours

   using, distance=speedxtime

               distance=10x0.17

                             =1.7 km

                distance=speedxtime

                              =15x0.25

                              =3.75 km

       Total distance=3.75+1.70

                               =5.45 km