Question

Solve the following examples :
(1) The speed of a vehicle is 2 m/s in the first 10 seconds and
seconds. Find the average speed of the vehicle.
e is 2 m/s in the first 10 seconds and 3 m/s in the next 10
(Ans. 2.5 m/s)​

Answer 1

Answer:

2.5 m/s

Explanation:

distance covered in first 10 second= 2m/s * 10s= 20 m

distance covered in next 10 second =3 m/s*10 s=30 m

average speed of vehicle = total distance/ total time

= (20+30)m/(10+10)s

=50 m/20 s=2.5 m/s

Answer 2

Answer:

it's answer will be 2.5 not 4

Explanation:

Because average speed = total distance travelled

_________________

total time taken

so, distance = speed ×time

= 2×10

= 20

distance = speed ×time

= 3×10

= 30

total distance travelled =20+30

= 50

total time taken = 10+10

= 20

average speed = 50/20

= 2.5m/s